Revert "Rename DexJar interface method to DexJarBuildPath."

This reverts commit 562c240185.

Reason for revert: breaks `lunch full-eng && m checkbuild`.

Change-Id: Id7c7d6240d98afaf8edd49b6c96cd05534b784cc

java/app.go

@@ -1882,7 +1882,7 @@ func (u *usesLibrary) usesLibraryPaths(ctx android.ModuleContext) map[string]and
 	if !ctx.Config().UnbundledBuild() {
 		ctx.VisitDirectDepsWithTag(usesLibTag, func(m android.Module) {
 			if lib, ok := m.(Dependency); ok {
-				if dexJar := lib.DexJarBuildPath(); dexJar != nil {
+				if dexJar := lib.DexJar(); dexJar != nil {
 					usesLibPaths[ctx.OtherModuleName(m)] = dexJar
 				} else {
 					ctx.ModuleErrorf("module %q in uses_libs or optional_uses_libs must produce a dex jar, does it have installable: true?",