Update the list of modules in tests for Python 3.10

tests/sources/python-modules.py

@@ -256,9 +256,10 @@ if sys.version_info > (3, 7):
 if sys.version_info > (3, 8):
     standard_library.remove('dummy_threading')
 
-# 'symbol' module has been removed from Python 3.10
+# 'symbol' and 'formatter' modules have been removed from Python 3.10
 if sys.version_info >= (3, 10):
     standard_library.remove('symbol')
+    standard_library.remove('formatter')
 
 # Remove tkinter and Easter eggs
 excluded_modules = [
@@ -270,7 +271,6 @@ excluded_modules = [
 def check_missing_modules(expected_modules):
     missing = []
     for module in expected_modules:
-        print('Try to import module ', module)
         try:
             importlib.import_module(module)
         except: