Remove old comments

Author: vmalia

conanfile.py

@@ -93,9 +93,6 @@ def system_requirements(self):
 
     def get_python_exe(self):
         # Find supported Python binary
-        # Changes will be required with Python 4.x release -
-        # (Deprecate Python 2.x support?)
-        # (Deprecate use of "python3" and use "python" only?)
         python_exe = "python3"
         try:
             self.run(f"{python_exe} --version", output=False)