Revert "Separate dexpreopt.GlobalSoongConfig to allow independen..."

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: Ice3990225635a737e49e9aed7373f06516fccea3
diff --git a/java/java_test.go b/java/java_test.go
index b4795c0..a2788cb 100644
--- a/java/java_test.go
+++ b/java/java_test.go
@@ -57,13 +57,7 @@
 }
 
 func testConfig(env map[string]string, bp string, fs map[string][]byte) android.Config {
-	config := TestConfig(buildDir, env, bp, fs)
-
-	// Set up the global Once cache used for dexpreopt.GlobalSoongConfig, so that
-	// it doesn't create a real one, which would fail.
-	_ = dexpreopt.GlobalSoongConfigForTests(config)
-
-	return config
+	return TestConfig(buildDir, env, bp, fs)
 }
 
 func testContext() *android.TestContext {