Drop log.h include from helpers.h

With the relocation of several functions, including inline functions,
from helpers to util, we no longer need to include log.h.  Which is a
good thing, since any subsystem that needs logging should explicitly
include log.h

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

plugins/netlink.c

@@ -29,6 +29,7 @@
 
 #include "finit.h"
 #include "cond.h"
+#include "log.h"
 #include "helpers.h"
 #include "plugin.h"
 #include "service.h"

plugins/procps.c

@@ -31,6 +31,7 @@
 #include "finit.h"
 #include "helpers.h"
 #include "plugin.h"
+#include "log.h"
 
 #ifndef SYSCTL_PATH
 #define SYSCTL_PATH "/sbin/sysctl"

plugins/rtc.c

@@ -35,6 +35,7 @@
 #include "finit.h"
 #include "helpers.h"
 #include "plugin.h"
+#include "log.h"
 
 /*
  * Kernel RTC driver validates against this date for sanity check.  The

plugins/tty.c

@@ -38,6 +38,7 @@
 #include "plugin.h"
 #include "service.h"
 #include "tty.h"
+#include "log.h"
 
 static void tty_watcher(void *arg, int fd, int events);
 

plugins/urandom.c

@@ -38,6 +38,7 @@
 #include "finit.h"
 #include "helpers.h"
 #include "plugin.h"
+#include "log.h"
 
 #ifndef RANDOM_BYTES
 #define RANDOM_BYTES (32*1024)

plugins/x11-common.c

@@ -33,6 +33,7 @@
 #include "finit.h"
 #include "helpers.h"
 #include "plugin.h"
+#include "log.h"
 
 static void setup(void *arg)
 {