[CI] Do not test on next minor Drupal core version.

.travis.yml

@@ -55,8 +55,6 @@ matrix:
     - { env: ORCA_JOB=LOOSE_DEPRECATED_CODE_SCAN, name: "Loose deprecated code scan" }
     - { env: ORCA_JOB=STRICT_DEPRECATED_CODE_SCAN, name: "Strict deprecated code scan" }
     - { env: ORCA_JOB=DEPRECATED_CODE_SCAN_W_CONTRIB, name: "Deprecated code scan w/ contrib" }
-    - { env: ORCA_JOB=ISOLATED_TEST_ON_NEXT_MINOR, name: "Isolated test on next minor Drupal core version" }
-    - { env: ORCA_JOB=INTEGRATED_TEST_ON_NEXT_MINOR, name: "Integrated test on next minor Drupal core version" }
     # - { env: ORCA_JOB=ISOLATED_TEST_ON_NEXT_MINOR_DEV, name: "Isolated test on next minor dev Drupal core version" }
     # - { env: ORCA_JOB=INTEGRATED_TEST_ON_NEXT_MINOR_DEV, name: "Integrated test on next minor dev Drupal core version" }
     # Uncomment the following four lines to enable the corresponding tests once