Undo changes for config expansion. Change unit tests to use OPENRAM_HOME.

compiler/tests/05_dummy_array_test.py

@@ -16,7 +16,8 @@ import debug
 class dummy_row_test(openram_test):
 
     def runTest(self):
-        globals.init_openram("{}/config".format(OPTS.tech_name))
+        config_file = "{}/tests/{}/config".format(os.getenv("OPENRAM_HOME"), OPTS.tech_name)
+        globals.init_openram(config_file)
 
         debug.info(2, "Testing dummy row for 6t_cell")
         a = factory.create(module_type="dummy_array", rows=1, cols=4)