CLN: Remove unused type ignores

Author: zacharym-collins

pandas/core/indexes/datetimes.py

@@ -694,7 +694,7 @@ def __new__(
             if copy is not False:
                 if dtype is None or astype_is_view(
                     data.dtype,
-                    pandas_dtype(dtype),  # type: ignore[arg-type]
+                    pandas_dtype(dtype),
                 ):
                     data = data.copy()
                     copy = False

pandas/core/indexes/interval.py

@@ -270,7 +270,7 @@ def __new__(
             if copy is not False:
                 if dtype is None or astype_is_view(
                     data.dtype,
-                    pandas_dtype(dtype),  # type: ignore[arg-type]
+                    pandas_dtype(dtype),
                 ):
                     data = data.copy()
                     copy = False

pandas/core/indexes/period.py

@@ -246,7 +246,7 @@ def __new__(
             if copy is not False:
                 if dtype is None or astype_is_view(
                     data.dtype,
-                    pandas_dtype(dtype),  # type: ignore[arg-type]
+                    pandas_dtype(dtype),
                 ):
                     data = data.copy()
                     copy = False