fix: top-level: Remove undefined ref in functions

- Fix: Remove reference to
  `.utils.get_cell_size._invalidate_terminal_size_cache()` in top-level
  functions:

  - `disable_win_size_swap()`
  - `enable_queries()`
  - `enable_win_size_swap()`

  `get_cell_size()` is no longer decorated with `@.utils.terminal_size_cached`.

Broken in commit da0e50c of #87.

Related to 497d9b7.

src/term_image/__init__.py

@@ -104,7 +104,6 @@ def disable_win_size_swap():
     """
     if utils._swap_win_size:
         utils._swap_win_size = False
-        utils.get_cell_size._invalidate_terminal_size_cache()
         with utils._cell_size_lock:
             utils._cell_size_cache[:] = (0,) * 4
 
@@ -119,7 +118,6 @@ def enable_queries() -> None:
     """
     if not utils._queries_enabled:
         utils._queries_enabled = True
-        utils.get_cell_size._invalidate_terminal_size_cache()
         utils.get_fg_bg_colors._invalidate_cache()
         utils.get_terminal_name_version._invalidate_cache()
         with utils._cell_size_lock:
@@ -139,7 +137,6 @@ def enable_win_size_swap():
     """
     if not utils._swap_win_size:
         utils._swap_win_size = True
-        utils.get_cell_size._invalidate_terminal_size_cache()
         with utils._cell_size_lock:
             utils._cell_size_cache[:] = (0,) * 4