[3.10] Fix typos in documentation and comments (GH-102374)

Doc/library/sqlite3.rst

@@ -72,7 +72,7 @@ including `cursors`_ and `transactions`_.
 
 First, we need to create a new database and open
 a database connection to allow :mod:`!sqlite3` to work with it.
-Call :func:`sqlite3.connect` to to create a connection to
+Call :func:`sqlite3.connect` to create a connection to
 the database :file:`tutorial.db` in the current working directory,
 implicitly creating it if it does not exist:
 

Lib/zoneinfo/_zoneinfo.py

@@ -302,7 +302,7 @@ def _utcoff_to_dstoff(trans_idx, utcoffsets, isdsts):
         # difference between utcoffset() and the "standard" offset, but
         # the "base offset" and "DST offset" are not encoded in the file;
         # we can infer what they are from the isdst flag, but it is not
-        # sufficient to to just look at the last standard offset, because
+        # sufficient to just look at the last standard offset, because
         # occasionally countries will shift both DST offset and base offset.
 
         typecnt = len(isdsts)