MXS-2197 Remove most includes of maxscale/log.hh

All cc-files should include maxscale/ccdefs.hh, which includes
maxscale/log.hh. Consequently it need not be included again.

server/core/dcb.cc

@@ -44,7 +44,6 @@
 #include <maxscale/clock.h>
 #include <maxscale/limits.h>
 #include <maxscale/listener.hh>
-#include <maxscale/log.hh>
 #include <maxscale/poll.hh>
 #include <maxscale/router.hh>
 #include <maxscale/server.hh>

server/core/externcmd.cc

@@ -23,7 +23,6 @@
 
 #include <maxbase/assert.h>
 #include <maxscale/alloc.h>
-#include <maxscale/log.hh>
 #include <maxscale/pcre2.h>
 
 /**

server/core/maxkeys.cc

@@ -13,23 +13,13 @@
 
 /**
  * @file maxkeys.c  - Create the random encryption keys for maxscale
- *
- * @verbatim
- * Revision History
- *
- * Date         Who             Description
- * 24/07/13     Mark Riddoch    Initial implementation
- *
- * @endverbatim
  */
-#include "internal/secrets.h"
-
+#include <maxscale/ccdefs.hh>
 #include <getopt.h>
 #include <stdio.h>
-
-#include <maxscale/log.hh>
 #include <maxscale/paths.h>
 #include <maxscale/random.h>
+#include "internal/secrets.h"
 
 #ifdef HAVE_GLIBC
 struct option options[] =

server/core/maxpasswd.cc

@@ -13,14 +13,6 @@
 
 /**
  * @file maxpasswd.c  - Implementation of pasword encoding
- *
- * @verbatim
- * Revision History
- *
- * Date         Who             Description
- * 24/07/13     Mark Riddoch    Initial implementation
- *
- * @endverbatim
  */
 
 #include <maxscale/ccdefs.hh>
@@ -31,7 +23,6 @@
 #include <getopt.h>
 
 #include <maxscale/paths.h>
-#include <maxscale/log.hh>
 #include <maxscale/random.h>
 #include <maxscale/alloc.h>
 

server/core/test/test_config.cc

@@ -17,7 +17,6 @@
 #endif
 
 #include <iostream>
-#include <maxscale/log.hh>
 #include "../config.cc"
 
 using namespace std;

server/core/test/test_event.cc

@@ -21,7 +21,6 @@
 #include <iostream>
 #include <sstream>
 #include <maxbase/assert.h>
-#include <maxscale/log.hh>
 
 using namespace maxscale;
 using namespace std;

server/core/test/test_logthrottling.cc

@@ -11,6 +11,7 @@
  * Public License.
  */
 
+#include <maxscale/log.hh>
 #include <unistd.h>
 #include <cstdio>
 #include <stdint.h>
@@ -20,7 +21,6 @@
 #include <pthread.h>
 #include <sched.h>
 #include <semaphore.h>
-#include <maxscale/log.hh>
 #include <maxscale/random.h>
 
 using std::cerr;