DOC: fix SA01 for pandas.errors.MergeError

Co-authored-by: mroeschke <[email protected]>

Author: tuhinsharma121

pandas/errors/__init__.py

@@ -265,10 +265,6 @@ class MergeError(ValueError):
     --------
     DataFrame.join : For joining DataFrames on their indexes.
     merge : For merging two DataFrames on a common set of keys.
-    ValueError : Base class for exceptions related to invalid arguments.
-    NotImplementedError : A built-in exception that can also be used for abstract
-        methods but lacks the specificity of `AbstractMethodError` in indicating
-        the need for subclass implementation.
 
     Examples
     --------