ACS-9417 Reformat code and simplify CI

scripts/hooks/check-format-and-headers.sh

@@ -2,39 +2,6 @@
 
 set +x
 
-if [[ -z ${GITHUB_MODIFIED_FILES} ]]
-then
-  modified_files=$(git diff --cached --name-only --diff-filter=ACMR)
-else
-  modified_files=${GITHUB_MODIFIED_FILES}
-fi
-
-include_list=""
-for file in ${modified_files}
-do
-  include_list="${include_list},${file}"
-done
-include_list=${include_list:1}
-
-mvn spotless:apply validate -DlicenseUpdateHeaders=true -Pags,all-tas-tests -Dspotless-include-list="${include_list}" > /dev/null || true
-
-all_nonconformant_files=$(git diff --name-only --diff-filter=ACMR)
-
-for file in ${all_nonconformant_files}
-do
-  revert=1
-  for modified_file in ${modified_files}
-  do
-    if [[ "${modified_file}" == "${file}" ]]
-    then
-      revert=0
-      break
-    fi
-  done
-  if [[ ${revert} == 1 ]]
-  then
-    git checkout -- "${file}"
-  fi
-done
+mvn spotless:apply validate -DlicenseUpdateHeaders=true -Pags,all-tas-tests > /dev/null || true
 
 set -x