Remove unused headers

The my_config.h headers are not used.

server/modules/routing/schemarouter/schemarouter.c

@@ -10,7 +10,6 @@
  * of this software will be governed by version 2 or later of the General
  * Public License.
  */
-#include <my_config.h>
 #include <stdio.h>
 #include <strings.h>
 #include <string.h>

server/modules/routing/schemarouter/shardrouter.c

@@ -11,7 +11,6 @@
  * Public License.
  */
 
-#include <my_config.h>
 #include <stdio.h>
 #include <strings.h>
 #include <string.h>

server/modules/routing/schemarouter/test/testschemarouter.c

@@ -1,4 +1,3 @@
-#include <my_config.h>
 #include <mysql.h>
 #include <stdio.h>
 #include <stdlib.h>

server/modules/routing/schemarouter/test/testschemarouter2.c

@@ -1,4 +1,3 @@
-#include <my_config.h>
 #include <mysql.h>
 #include <stdio.h>
 #include <stdlib.h>