Remove redundant assertion

It is not necessary to test against both the 1st parsing result and the
reference array, since we already know they are equal.

tests/Mantis/ConfigParserTest.php

@@ -84,12 +84,10 @@ public function testArrays() {
 			$t_parsed_1 = $t_parser->parse();
 			$this->assertEquals( $t_parsed_1, $t_reference_result, $this->errorMessage( $t_string )  );
 
-			# Export the converted array, and parse again.
-			# The result should match both the model and the previously parsed array
+			# Export converted array and parse again: result should match the model
 			$t_parser = new ConfigParser( var_export( $t_parsed_1 , true ) );
 			$t_parsed_2 = $t_parser->parse();
 			$this->assertEquals( $t_parsed_2, $t_reference_result, $this->errorMessage( $t_string )  );
-			$this->assertEquals( $t_parsed_2, $t_parsed_1, $this->errorMessage( $t_string )  );
 		}
 	}