diff --git a/contrib/libtests/test-pngstest.sh b/contrib/libtests/test-pngstest.sh deleted file mode 100755 index e69de29bb..000000000 diff --git a/contrib/libtests/test-pngunknown.sh b/contrib/libtests/test-pngunknown.sh deleted file mode 100755 index e69de29bb..000000000 diff --git a/contrib/libtests/test-pngvalid-full.sh b/contrib/libtests/test-pngvalid-full.sh deleted file mode 100755 index e69de29bb..000000000 diff --git a/contrib/libtests/test-pngvalid-simple.sh b/contrib/libtests/test-pngvalid-simple.sh deleted file mode 100755 index e69de29bb..000000000 diff --git a/test-pngtest.sh b/test-pngtest.sh deleted file mode 100755 index e69de29bb..000000000