Fixed all nits and took out the general module and its usage

AutomatedTesting/Gem/PythonTests/prefab/TestSuite_Main.py

@@ -0,0 +1,35 @@
+"""
+ All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
+ its licensors.
+
+ For complete copyright and license terms please see the LICENSE at the root of this
+ distribution (the "License"). All use of this software is governed by the License,
+ or, if provided, by the license below or the license accompanying this file. Do not
+ remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
+ """
+
+# This suite consists of all test cases that are passing and have been verified.
+
+import pytest
+import os
+import sys
+
+from ly_test_tools import LAUNCHERS
+
+sys.path.append (os.path.dirname (os.path.abspath (__file__)) + '/../automatedtesting_shared')
+
+from base import TestAutomationBase
+
+@pytest.mark.SUITE_main
+@pytest.mark.parametrize("launcher_platform", ['windows_editor'])
+@pytest.mark.parametrize("project", ["AutomatedTesting"])
+class TestAutomation(TestAutomationBase):
+
+    def _run_prefab_test(self, request, workspace, editor, test_module):
+        self._run_test(request, workspace, editor, test_module, ["--regset=/Amazon/Preferences/EnablePrefabSystem=true"])
+
+    def test_PrefabLevel_OpensLevelWithEntities(self, request, workspace, editor, launcher_platform):
+        from . import PrefabLevel_OpensLevelWithEntities as test_module
+        self._run_prefab_test(request, workspace, editor, test_module)