Move version entry point into MODULE_INFO

The MODULE_INFO can easily hold the version information of the
module. This removes the need for a explicit version entry point.

server/modules/protocol/maxscaled/maxscaled.c

@@ -46,7 +46,8 @@ MODULE_INFO info =
     MODULE_API_PROTOCOL,
     MODULE_GA,
     GWPROTOCOL_VERSION,
-    "A maxscale protocol for the administration interface"
+    "A maxscale protocol for the administration interface",
+    "V2.0.0"
 };
 /*lint +e14 */
 
@@ -64,8 +65,6 @@ MODULE_INFO info =
  * @endverbatim
  */
 
-static char *version_str = "V2.0.0";
-
 #define GETPWUID_BUF_LEN 255
 
 static int maxscaled_read_event(DCB* dcb);
@@ -192,20 +191,6 @@ static GWPROTOCOL MyObject =
     NULL                            /**< Connection limit reached      */
 };
 
-/**
- * Implementation of the mandatory version entry point
- *
- * @return version string of the module
- *
- * @see function load_module in load_utils.c for explanation of the following
- * lint directives.
- */
-/*lint -e14 */
-char*  version()
-{
-    return version_str;
-}
-
 /**
  * The module initialisation routine, called when the module
  * is first loaded.