Update requirements.txt to remove unused packages

Removed ezcord and pycparser, and PyNaCl from requirements.

requirements.txt

@@ -1,6 +1,3 @@
 dotenv==0.9.9
-ezcord==0.7.2
 py-cord==2.6.1
-pycparser==2.23
-PyNaCl==1.5.0
 python-dotenv==1.2.1