Remove Core Library JARs from `/system/framework`.

These JARs are part of the ART APEX, and are now located in
`/apex/com.android.art/javalib`. Remove the supernumerary copies in
`/system/framework` and save ~11 MiB on the system partition.

(cherry picked from commit d4f09f77520f914bbd5d53ded9ac6188b2cd31b5)

Test: Device boot test
Bug: 142944799
Change-Id: Ia6f58d858ecdb80c9701696b8f20d5fa2de0c2c7
Merged-In: Ia6f58d858ecdb80c9701696b8f20d5fa2de0c2c7
diff --git a/core/main.mk b/core/main.mk
index 29c5a4c..a5e2456 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -1253,6 +1253,8 @@
   endef
 endif
 
+# TODO(b/142944799): Implement Java library absence check for Core Libraries.
+
 ifdef FULL_BUILD
   ifneq (true,$(ALLOW_MISSING_DEPENDENCIES))
     # Check to ensure that all modules in PRODUCT_PACKAGES exist (opt in per product)