Disable goma for javac actions in Soong

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

Bug: b/143658984
Test: treehugger
Change-Id: I207668d8baa4ab28160938732a38f696aeac3f44
diff --git a/java/builder.go b/java/builder.go
index f9b5367..3a0247d 100644
--- a/java/builder.go
+++ b/java/builder.go
@@ -38,7 +38,8 @@
 	// this, all java rules write into separate directories and then are combined into a .jar file
 	// (if the rule produces .class files) or a .srcjar file (if the rule produces .java files).
 	// .srcjar files are unzipped into a temporary directory when compiled with javac.
-	javac = pctx.AndroidRemoteStaticRule("javac", android.RemoteRuleSupports{Goma: true, RBE: true, RBEFlag: android.RBE_JAVAC},
+	// TODO(b/143658984): goma can't handle the --system argument to javac.
+	javac = pctx.AndroidRemoteStaticRule("javac", android.RemoteRuleSupports{Goma: false, RBE: true, RBEFlag: android.RBE_JAVAC},
 		blueprint.RuleParams{
 			Command: `rm -rf "$outDir" "$annoDir" "$srcJarDir" && mkdir -p "$outDir" "$annoDir" "$srcJarDir" && ` +
 				`${config.ZipSyncCmd} -d $srcJarDir -l $srcJarDir/list -f "*.java" $srcJars && ` +