Revert "Autogenerated files for 3.6.0"

This reverts commit e8a6833b2878f1c08b8f96fe35e2812367e32ef3.

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
diff --git a/library/Makefile b/library/Makefile
index a5e023e..388fcea 100644
--- a/library/Makefile
+++ b/library/Makefile
@@ -341,7 +341,7 @@
 generated_files: $(GENERATED_FILES)
 
 # See root Makefile
-GEN_FILES ?=
+GEN_FILES ?= yes
 ifdef GEN_FILES
 gen_file_dep =
 else