restructured drop method return value defination (#54348)

* doc: restructured return defination of df.drop() method

* removed trailing whitespace, added  at the end

---------

Co-authored-by: Ali Asgar <ali.chalniwala@bluealtair.com>

Author: aliasgar55

pandas/core/frame.py

@@ -5209,8 +5209,8 @@ def drop(
         Returns
         -------
         DataFrame or None
-            DataFrame without the removed index or column labels or
-            None if ``inplace=True``.
+            Returns DataFrame or None DataFrame with the specified
+            index or column labels removed or None if inplace=True.
 
         Raises
         ------