ci: Reduce granularity of Intel compiler coverage for pre-2021 versions

For Intel versions from 2016, 2017, 2018, 2019, and 2020, cover only the
latest update from each year.  This will reduce the size of the nightly
pipeline.

.gitlab-ci.yml

@@ -533,20 +533,6 @@ t:fedora39-ninja-multi:
     needs:
         - t:fedora39-ninja
 
-t:intel2016-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2016_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2016-el7
-
-t:intel2016u1-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2016u1_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2016u1-el7
-
 t:intel2016u2-makefiles:
     extends:
         - .cmake_test_linux_intelclassic_makefiles
@@ -554,62 +540,6 @@ t:intel2016u2-makefiles:
         CMAKE_CI_BUILD_NAME: intel2016u2_makefiles
         CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2016u2-el7
 
-t:intel2017-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2017_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2017-el7
-
-t:intel2017u1-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2017u1_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2017u1-el7
-
-t:intel2017u2-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2017u2_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2017u2-el7
-
-t:intel2017u3-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2017u3_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2017u3-el7
-
-t:intel2017u4-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2017u4_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2017u4-el7
-
-t:intel2017u5-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2017u5_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2017u5-el7
-
-t:intel2017u6-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2017u6_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2017u6-el7
-
-t:intel2017u7-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2017u7_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2017u7-el7
-
 t:intel2017u8-makefiles:
     extends:
         - .cmake_test_linux_intelclassic_makefiles
@@ -617,34 +547,6 @@ t:intel2017u8-makefiles:
         CMAKE_CI_BUILD_NAME: intel2017u8_makefiles
         CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2017u8-el7
 
-t:intel2018-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2018_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2018-el7
-
-t:intel2018u1-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2018u1_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2018u1-el7
-
-t:intel2018u2-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2018u2_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2018u2-el7
-
-t:intel2018u3-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2018u3_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2018u3-el7
-
 t:intel2018u4-makefiles:
     extends:
         - .cmake_test_linux_intelclassic_makefiles
@@ -652,34 +554,6 @@ t:intel2018u4-makefiles:
         CMAKE_CI_BUILD_NAME: intel2018u4_makefiles
         CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2018u4-el7
 
-t:intel2019-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2019_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2019-el7
-
-t:intel2019u1-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2019u1_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2019u1-el7
-
-t:intel2019u2-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2019u2_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2019u2-el7
-
-t:intel2019u3-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2019u3_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2019u3-el7
-
 t:intel2019u4-makefiles:
     extends:
         - .cmake_test_linux_intelclassic_makefiles
@@ -687,20 +561,6 @@ t:intel2019u4-makefiles:
         CMAKE_CI_BUILD_NAME: intel2019u4_makefiles
         CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2019u4-el7
 
-t:intel2020-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2020_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2020-el8
-
-t:intel2020u2-makefiles:
-    extends:
-        - .cmake_test_linux_intelclassic_makefiles
-    variables:
-        CMAKE_CI_BUILD_NAME: intel2020u2_makefiles
-        CMAKE_CI_INTELCOMPILER_IMAGE_TAG: 2020u2-el8
-
 t:intel2020u4-makefiles:
     extends:
         - .cmake_test_linux_intelclassic_makefiles