Disable goma for javac actions in Make

goma can't handle the --system argument that Android must pass to
javac.

Bug: b/143658984
Test: treehugger
Change-Id: I7091a14f940ae696930c9d4a7869ae3a81a33fbe
diff --git a/core/goma.mk b/core/goma.mk
index c265259..2b51d8b 100644
--- a/core/goma.mk
+++ b/core/goma.mk
@@ -27,7 +27,8 @@
   # use both ccache and gomacc.
   CC_WRAPPER := $(strip $(CC_WRAPPER) $(GOMA_CC))
   CXX_WRAPPER := $(strip $(CXX_WRAPPER) $(GOMA_CC))
-  JAVAC_WRAPPER := $(strip $(JAVAC_WRAPPER) $(GOMA_CC))
+  # b/143658984: goma can't handle the --system argument to javac
+  #JAVAC_WRAPPER := $(strip $(JAVAC_WRAPPER) $(GOMA_CC))
 
   goma_dir :=
 endif