Remove useless comment

Author: Hugo Osvaldo Barrera

.pre-commit-config.yaml

@@ -15,7 +15,7 @@ repos:
     hooks:
       - id: black
   - repo: https://github.com/PyCQA/flake8
-    rev: "3.9.2" # pick a git hash / tag to point to
+    rev: "3.9.2"
     hooks:
       - id: flake8
         additional_dependencies:
@@ -27,6 +27,6 @@ repos:
     -   id: pyupgrade
         args: [--py36-plus]
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: 'v0.910'  # Use the sha / tag you want to point at
+    rev: 'v0.910'
     hooks:
     -   id: mypy