refactor(heap): remove redundant TypeVar in Heap (#15504)

* refactor(heap): remove redundant TypeVar in Heap

* refactor(heap): revert Comparable.__gt__ signature to self: T, other: T

* Clean up imports in heap.py

Removed unused TypeVar import from heap.py

* Update __gt__ method signature in Comparable class

---------

Co-authored-by: Christian Clauss <cclauss@me.com>

Author: iosayin

data_structures/heap/heap.py

@@ -2,18 +2,15 @@
 
 from abc import abstractmethod
 from collections.abc import Iterable
-from typing import Protocol, TypeVar
+from typing import Protocol
 
 
 class Comparable(Protocol):
     @abstractmethod
-    def __gt__(self: T, other: T, /) -> bool:
+    def __gt__(self, other: object, /) -> bool:
         pass
 
 
-T = TypeVar("T", bound=Comparable)
-
-
 class Heap[T: Comparable]:
     """A Max Heap Implementation