test: replace shebangs with descriptions in shell libraries

diff --git a/t/t4129-apply-samemode.sh b/t/t4129-apply-samemode.sh
index fc7af0493102f12438d59ac5ed6e3e96eda8c841..c268298eaf5672c649ca3e4815dc4f43d71efece 100755 (executable)
--- a/t/t4129-apply-samemode.sh
+++ b/t/t4129-apply-samemode.sh
@@ -4,13 +4,6 @@ test_description='applying patch with mode bits'
 
 . ./test-lib.sh
 
-if test "$(git config --bool core.filemode)" = false
-then
-       say 'filemode disabled on the filesystem'
-else
-       test_set_prereq FILEMODE
-fi
-
 test_expect_success setup '
        echo original >file &&
        git add file &&