Revert "Preopt APEX system server jars."

This reverts commit ca9bc98e0cfe9a519cfdd13450a68f1ed7ad5b02.

Reason for revert: breaks build
Bug: 200024131

Change-Id: Ide07b4c4d267370ae31107b1598b2f878c701282
diff --git a/java/androidmk.go b/java/androidmk.go
index 71370c9..68ccd82 100644
--- a/java/androidmk.go
+++ b/java/androidmk.go
@@ -61,13 +61,7 @@
 	var entriesList []android.AndroidMkEntries
 
 	if library.hideApexVariantFromMake {
-		// For a java library built for an APEX, we don't need a Make module for itself. Otherwise, it
-		// will conflict with the platform variant because they have the same module name in the
-		// makefile. However, we need to add its dexpreopt outputs as sub-modules, if it is preopted.
-		dexpreoptEntries := library.dexpreopter.AndroidMkEntriesForApex()
-		if len(dexpreoptEntries) > 0 {
-			entriesList = append(entriesList, dexpreoptEntries...)
-		}
+		// For a java library built for an APEX we don't need Make module
 		entriesList = append(entriesList, android.AndroidMkEntries{Disabled: true})
 	} else if !library.ApexModuleBase.AvailableFor(android.AvailableToPlatform) {
 		// Platform variant.  If not available for the platform, we don't need Make module.