Remove incorrect strict test for test-suites for test_module_config

I misunderstood our desire to eventually migrate all
`test_module_config` modules -> "general-tests" for the requirement that
it must be used now.

While working on converting these modules to use symlinks rather than
copies of data files, I noticed a problem if the derived test was in
"general-tests", but the base test was in "device-tests". The symlink
would not have a base to point to in general-tests.zip.

Allow the derived tests to be in other suites for now.

Test: go test ./tradefed_modules/
Test: m blueprint_tests
Change-Id: I9524d6c3964db6de38fc3c4cb4c5bc493dadc0db
diff --git a/tradefed_modules/test_module_config.go b/tradefed_modules/test_module_config.go
index 9127f67..b2d5631 100644
--- a/tradefed_modules/test_module_config.go
+++ b/tradefed_modules/test_module_config.go
@@ -160,35 +160,17 @@
 
 }
 
-// Any test suites in base should not be repeated in the derived class, except "general-tests".
-// We may restrict derived tests to only be "general-tests" as it doesn't make sense to add a slice
-// of a test to compatibility suite.
+// Ensure at least one test_suite is listed.  Ideally it should be general-tests
+// or device-tests, whichever is listed in base and prefer general-tests if both are listed.
+// However this is not enforced yet.
 //
-// Returns ErrorMessage, false on problems
-// Returns _, true if okay.
+// Returns true if okay and reports errors via ModuleErrorf.
 func (m *testModuleConfigModule) validateTestSuites(ctx android.ModuleContext) bool {
 	if len(m.tradefedProperties.Test_suites) == 0 {
-		ctx.ModuleErrorf("At least one test-suite must be set or this won't run. Use \"general-tests\"")
+		ctx.ModuleErrorf("At least one test-suite must be set or this won't run. Use \"general-tests\" or \"device-tests\"")
 		return false
 	}
 
-	derivedSuites := make(map[string]bool)
-	// See if any suites in base is also in derived (other than general-tests)
-	for _, s := range m.tradefedProperties.Test_suites {
-		if s != "general-tests" {
-			derivedSuites[s] = true
-		}
-	}
-	if len(derivedSuites) == 0 {
-		return true
-	}
-	for _, baseSuite := range m.provider.TestSuites {
-		if derivedSuites[baseSuite] {
-			ctx.ModuleErrorf("TestSuite %s exists in the base, do not add it here", baseSuite)
-			return false
-		}
-	}
-
 	return true
 }