Remove Airflow 2.6 back compact code (#39558)

diff --git a/airflow/providers/google/cloud/hooks/bigquery.py b/airflow/providers/google/cloud/hooks/bigquery.py
index 13465bb..0a279d9 100644
--- a/airflow/providers/google/cloud/hooks/bigquery.py
+++ b/airflow/providers/google/cloud/hooks/bigquery.py
@@ -72,12 +72,7 @@
     GoogleBaseHook,
     get_field,
 )
-
-try:
-    from airflow.utils.hashlib_wrapper import md5
-except ModuleNotFoundError:
-    # Remove when Airflow providers min Airflow version is "2.7.0"
-    from hashlib import md5
+from airflow.utils.hashlib_wrapper import md5
 from airflow.utils.helpers import convert_camel_to_snake
 from airflow.utils.log.logging_mixin import LoggingMixin
 
diff --git a/airflow/providers/google/cloud/operators/workflows.py b/airflow/providers/google/cloud/operators/workflows.py
index c42e0e2..2a51d75 100644
--- a/airflow/providers/google/cloud/operators/workflows.py
+++ b/airflow/providers/google/cloud/operators/workflows.py
@@ -41,11 +41,8 @@
     from google.protobuf.field_mask_pb2 import FieldMask
 
     from airflow.utils.context import Context
-try:
-    from airflow.utils.hashlib_wrapper import md5
-except ModuleNotFoundError:
-    # Remove when Airflow providers min Airflow version is "2.7.0"
-    from hashlib import md5
+
+from airflow.utils.hashlib_wrapper import md5
 
 
 class WorkflowsCreateWorkflowOperator(GoogleCloudBaseOperator):