Make dynamic linker debugging always available.

If you need to build your own linker to get debugging, the debugging
is never available when you need it.

Change-Id: I5ff7e55753459d49a2990f25d9aa155e0b8602e0

linker/linker_format.cpp

@@ -184,8 +184,6 @@ snprintf(char* buff, size_t bufsize, const char* format, ...)
     return ret;
 }
 
-#if LINKER_DEBUG
-
 #if !LINKER_DEBUG_TO_LOG
 
 /*** File descriptor output
@@ -326,8 +324,6 @@ format_log(int prio, const char *tag, const char *format, ...)
 
 #endif /* LINKER_DEBUG_TO_LOG */
 
-#endif /* LINKER_DEBUG */
-
 /*** formatted output implementation
  ***/