[SnapshotSAS]Delete Redundant code

The removed code is for another feature.

sdk/storage/azure-storage-blob/azure/storage/blob/_shared/shared_access_signature.py

@@ -46,13 +46,6 @@ class QueryStringConstants(object):
     END_RK = 'erk'
     SIGNED_RESOURCE_TYPES = 'srt'
     SIGNED_SERVICES = 'ss'
-    SIGNED_TIMESTAMP = 'snapshot'
-    SIGNED_OID = 'skoid'
-    SIGNED_TID = 'sktid'
-    SIGNED_KEY_START = 'skt'
-    SIGNED_KEY_EXPIRY = 'ske'
-    SIGNED_KEY_SERVICE = 'sks'
-    SIGNED_KEY_VERSION = 'skv'
 
     @staticmethod
     def to_list():
@@ -216,5 +209,3 @@ def get_value_to_append(query):
 
     def get_token(self):
         return '&'.join(['{0}={1}'.format(n, url_quote(v)) for n, v in self.query_dict.items() if v is not None])
-
-

sdk/storage/azure-storage-blob/azure/storage/blob/shared_access_signature.py

@@ -4,6 +4,10 @@
     QueryStringConstants
 
 
+class BlobQueryStringConstants(object):
+    SIGNED_TIMESTAMP = 'snapshot'
+
+
 class BlobSharedAccessSignature(SharedAccessSignature):
     '''
     Provides a factory for creating blob and container access
@@ -187,7 +191,7 @@ def __init__(self):
         super(_BlobSharedAccessHelper, self).__init__()
 
     def add_timestamp(self, timestamp):
-        self._add_query(QueryStringConstants.SIGNED_TIMESTAMP, timestamp)
+        self._add_query(BlobQueryStringConstants.SIGNED_TIMESTAMP, timestamp)
 
     def get_value_to_append(self, query):
         return_value = self.query_dict.get(query) or ''
@@ -230,7 +234,7 @@ def add_resource_signature(self, account_name, account_key, path, user_delegatio
              self.get_value_to_append(QueryStringConstants.SIGNED_PROTOCOL) +
              self.get_value_to_append(QueryStringConstants.SIGNED_VERSION) +
              self.get_value_to_append(QueryStringConstants.SIGNED_RESOURCE) +
-             self.get_value_to_append(QueryStringConstants.SIGNED_TIMESTAMP) +
+             self.get_value_to_append(BlobQueryStringConstants.SIGNED_TIMESTAMP) +
              self.get_value_to_append(QueryStringConstants.SIGNED_CACHE_CONTROL) +
              self.get_value_to_append(QueryStringConstants.SIGNED_CONTENT_DISPOSITION) +
              self.get_value_to_append(QueryStringConstants.SIGNED_CONTENT_ENCODING) +
@@ -248,6 +252,6 @@ def add_resource_signature(self, account_name, account_key, path, user_delegatio
     def get_token(self):
         # a conscious decision was made to exclude the timestamp in the generated token
         # this is to avoid having two snapshot ids in the query parameters when the user appends the snapshot timestamp
-        exclude = [QueryStringConstants.SIGNED_TIMESTAMP]
+        exclude = [BlobQueryStringConstants.SIGNED_TIMESTAMP]
         return '&'.join(['{0}={1}'.format(n, url_quote(v))
                          for n, v in self.query_dict.items() if v is not None and n not in exclude])