Revert "Get the dex2oat host tool path from module dependency on..."

Revert submission 1211982-dex2oat-soong-dep

Reason for revert: Build failures. See b/148312086.

Reverted Changes:
Ibc427a9a8: Make dex2oat(d) visible for use as implicit dexpre...
I71df11c1e: Move the Once cache for dexpreopt.GlobalConfig int...
I38317f2d5: Get the dex2oat host tool path from module depende...
I440a09dba: Separate dexpreopt.GlobalSoongConfig to allow inde...

Bug: 148312086
Bug: 145934348
Exempt-From-Owner-Approval: Plain revert
Change-Id: I0cf6fef04434fd3c0b7957ee9abdcaabeb20b9d8

java/java_test.go

@@ -57,8 +57,6 @@ func TestMain(m *testing.M) {
 }
 
 func testConfig(env map[string]string, bp string, fs map[string][]byte) android.Config {
-	bp += dexpreopt.BpToolModulesForTest()
-
 	config := TestConfig(buildDir, env, bp, fs)
 
 	// Set up the global Once cache used for dexpreopt.GlobalSoongConfig, so that
@@ -94,8 +92,6 @@ func testContext() *android.TestContext {
 	cc.RegisterRequiredBuildComponentsForTest(ctx)
 	ctx.RegisterModuleType("ndk_prebuilt_shared_stl", cc.NdkPrebuiltSharedStlFactory)
 
-	dexpreopt.RegisterToolModulesForTest(ctx)
-
 	return ctx
 }