Revert circleci oopsie

.circleci/config.yml

             cp Marlin/src/pins/pins_RAMPS.h Marlin/src/pins/pins_RAMPS.h.backup
             #
 
+            env_backup
+
             #################################
             # Build all sample configurations
             #################################
             # Remove temp files from dependencies tree prior to caching
             rm -rf ~/Marlin/.piolibdeps/_tmp_*
 
-
+            #
+            # Restore the environment
+            #
+            env_restore
 
       - save_cache:
           paths:
           - ~/.platformio
           - ~/Marlin/.piolibdeps
           key: v1-dependencies-{{ checksum "~/Marlin/platformio.ini" }}
-