Remove unneeded call to all-makefiles-under

It was only added to prevent conflicts with downstream and it
is no longer needed downstream.

Bug: 32912773
Test: make checkbuild
Change-Id: I4fa9568b6ea7e745b0c8adffd0b1ab751ddf715e
diff --git a/Android.mk b/Android.mk
index b7be989..7e9afec 100644
--- a/Android.mk
+++ b/Android.mk
@@ -112,5 +112,3 @@
 ###################################################
 explicit_target_excludes :=
 target_src_files :=
-
-include $(call all-makefiles-under,$(LOCAL_PATH))