Removed useless method [#CLICKHOUSE-2]

dbms/src/DataStreams/AggregatingSortedBlockInputStream.h

@@ -47,7 +47,6 @@ public:
 
     bool isGroupedOutput() const override { return true; }
     bool isSortedOutput() const override { return true; }
-    const SortDescription & getSortDescription() const override { return description; }
 
 protected:
     /// Can return 1 more records than max_block_size.

dbms/src/Storages/StorageMemory.cpp

@@ -37,7 +37,7 @@ public:
         return res.str();
     }
 
-    Block getHeader() override { return storage.getSampleBlockForColumns(column_names); };
+    Block getHeader() override { return storage.getSampleBlockForColumns(column_names); }
 
 protected:
     Block readImpl() override