Remove unused imports in app.py to streamline code and improve maintainability

app.py

@@ -32,8 +32,6 @@ db = init_conn()
 
 ## import global functions
 from global_func.load_contest_file import load_contest_file
-from global_func.load_file import load_file
-from global_func.find_name_mismatches import find_name_mismatches
 from global_func.create_player_exposures import create_player_exposures
 from global_func.create_stack_exposures import create_stack_exposures
 from global_func.create_stack_size_exposures import create_stack_size_exposures