tests/haikudepot: Fix build of ValidationUtilsTest

Changeset 835e7239d added some additional tests for HaikuDepot, but
ValidationUtilsTest::AddTest references a test method which doesn't
exist.

I think the intention was to have TestEmailInvalid defined, but it was
split into more granular tests like TestEmailInvalidNoDomain,
etc. Just removing this undefined test from the suite.

Change-Id: I858233df29657d07d78ad1784691572e65a26045
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2183
Reviewed-by: Adrien Destugues <[email protected]>

src/tests/apps/haikudepot/ValidationUtilsTest.cpp

@@ -151,10 +151,6 @@ ValidationUtilsTest::AddTests(BTestSuite& parent)
 	CppUnit::TestSuite& suite = *new CppUnit::TestSuite(
 		"ValidationUtilsTest");
 
-	suite.addTest(
-		new CppUnit::TestCaller<ValidationUtilsTest>(
-			"ValidationUtilsTest::TestEmailInvalid",
-			&ValidationUtilsTest::TestEmailInvalid));
 	suite.addTest(
 		new CppUnit::TestCaller<ValidationUtilsTest>(
 			"ValidationUtilsTest::TestEmailValid",
@@ -181,4 +177,4 @@ ValidationUtilsTest::AddTests(BTestSuite& parent)
 			&ValidationUtilsTest::TestPasswordClearValid));
 
 	parent.addTest("ValidationUtilsTest", &suite);
-}
+}