index-pack: work around thread-unsafe pread()

diff --git a/t/t4102-apply-rename.sh b/t/t4102-apply-rename.sh
index e3ea3d5114b8f6a09b79c9a1323c563da0c7b170..49e2d6c34983c7e4620739a52ecc03cf158efe3a 100755 (executable)
--- a/t/t4102-apply-rename.sh
+++ b/t/t4102-apply-rename.sh
@@ -7,7 +7,6 @@ test_description='git apply handling copy/rename patch.
 
 '
 . ./test-lib.sh
-. "$TEST_DIRECTORY"/lib-prereq-FILEMODE.sh
 
 # setup