Resolve maintainer-check and maintainer-clang issues

src/camera.cpp

@@ -822,7 +822,7 @@ void cls_camera::init_cleandir_default()
         cleandir->dur_unit = "d";
     }
 
-    if ((cleandir->dur_val == 0 )) {
+    if (cleandir->dur_val == 0 ) {
         MOTION_LOG(ERR, TYPE_ALL, NO_ERRNO
             ,_("Invalid clean directory duration number : %d")
             ,cleandir->dur_val);

src/camera.hpp

@@ -212,7 +212,6 @@ class cls_camera {
         cls_v4l2cam     *v4l2cam;
         cls_libcam      *libcam;
 
-        pthread_t       thread_id;
         int             track_posx;
         int             track_posy;
         int             threshold_maximum;

src/dbse.cpp

@@ -1004,6 +1004,9 @@ void cls_dbse::filelist_get(std::string sql, vec_files &p_flst)
                 sqlite3db_filelist(sql);
             }
         #endif
+        #ifndef HAVE_DBSE
+            (void)sql;
+        #endif
         for (indx=0;indx<filelist.size();indx++){
             p_flst.push_back(filelist[indx]);
         }