fix(caches): removed cacheKey cleanup logic as its proven to fail, and is not reliable.

rhodecode/lib/rc_cache/utils.py

@@ -30,7 +30,7 b' from rhodecode.lib.hash_utils import sha'
 from rhodecode.lib.str_utils import safe_bytes
 from rhodecode.lib.type_utils import str2bool # noqa :required by imports from .utils
 
-from . import region_meta, cache_key_meta
+from . import region_meta
 
 log = logging.getLogger(__name__)
 
@@ -352,7 +352,6 b' class InvalidationContext(object):'
                 cache_state_uid = first_cache_obj.cache_state_uid
             cache_obj = CacheKey(self.cache_key, cache_args=new_cache_args,
                                  cache_state_uid=cache_state_uid)
-            cache_key_meta.cache_keys_by_pid.add(self.proc_key)
 
         return cache_obj