remove unwanted comments

Author: cis-muzahid

src/class_sqlThread.py

@@ -146,8 +146,6 @@ def check_columns_can_store_binary_null(self):  # pylint: disable=too-many-local
         # too-many-branches, too-many-statements
         """
             Check if sqlite can store binary zeros.
-            Are you hoping to add a new option to the keys.dat file of existing
-            Bitmessage users or modify the SQLite database? Add it right
         """
         try:
             testpayload = '\x00\x00'