all.sh: temporary alignment with development

This change is not correct for 3.6 and will be reverted. It is only
applied as a temporary measure to avoid conflicts while cherry-pick
changes from development.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index f07353d..db8d637 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -347,7 +347,7 @@
               -iname CMakeCache.txt -o \
               -path './cmake/*.cmake' \) -exec rm -f {} \+
     # Remove Makefiles generated by in-tree CMake builds
-    rm -f 3rdparty/Makefile 3rdparty/*/Makefile pkgconfig/Makefile framework/Makefile
+    rm -f pkgconfig/Makefile framework/Makefile
     rm -f include/Makefile programs/!(fuzz)/Makefile
     rm -f tf-psa-crypto/Makefile tf-psa-crypto/include/Makefile
     rm -f tf-psa-crypto/core/Makefile tf-psa-crypto/drivers/Makefile