Revert "fix install configs and use SUDO_GID"

This reverts commit e93b4b0e10.

cmake/modules/SRSLTE_install_configs.sh.in

@@ -45,8 +45,7 @@ install_file(){
     # Set file ownership to user calling sudo
     if [ $SUDO_USER ]; then
       user=$SUDO_USER
-      group=$SUDO_GID
+      chown $user:$user $dest_path
-      chown $user:$group $dest_path
     fi
   else
     echo " - $source_path doesn't exists. Skipping it."