Revert "Added events system"

This reverts commit f00d569db3.

utils/permissions.py

@@ -1,35 +0,0 @@
-from flask_login import current_user
-from models import RoomMemberPermission
-from datetime import datetime, timezone
-
-def user_has_permission(room, perm_name):
-    """
-    Check if the current user has a specific permission in a room.
-    
-    Args:
-        room: Room object
-        perm_name: Name of the permission to check (e.g., 'can_view', 'can_upload')
-    
-    Returns:
-        bool: True if user has permission, False otherwise
-    """
-    # Admin users have all permissions
-    if current_user.is_admin:
-        return True
-    
-    # Check if user is a member of the room
-    if current_user not in room.members:
-        return False
-    
-    # Get user's permissions for this room
-    permission = RoomMemberPermission.query.filter_by(
-        room_id=room.id,
-        user_id=current_user.id
-    ).first()
-    
-    # If no specific permissions are set, user only has view access
-    if not permission:
-        return perm_name == 'can_view'
-    
-    # Check the specific permission
-    return getattr(permission, perm_name, False)