Remove shebang line from pykeepass/deprecated.py (#377)

The file does not have the executable bit set in its filesystem
permissions and is not script-like (no `if __name__ == "__main__"` and
no interesting side effects), so a shebang is not useful.

pykeepass/deprecated.py

@@ -1,6 +1,3 @@
-#!/usr/bin/env python3
-
-
 # ---------- Find functions ---------------
 # Use find_entries()/find_groups() instead