Revert "Write out export_includes whenever the module is built."

This reverts commit 40c34f3778e778762c7a7dcaf8697b2c90a717de
diff --git a/core/binary.mk b/core/binary.mk
index 81f0724..5cb17bc 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -702,6 +702,3 @@
 else
 	$(hide) touch $@
 endif
-
-# Make sure export_includes gets generated when you are running mm/mmm
-$(LOCAL_BUILT_MODULE) : $(export_includes)
diff --git a/core/prebuilt.mk b/core/prebuilt.mk
index 101cae9..0c46341 100644
--- a/core/prebuilt.mk
+++ b/core/prebuilt.mk
@@ -56,8 +56,6 @@
 $(intermediates)/export_includes:
 	$(hide) mkdir -p $(dir $@) && rm -f $@
 	$(hide) touch $@
-
-$(LOCAL_BUILT_MODULE) : $(intermediates)/export_includes
 endif
 endif