Delint tests

Author: odeke-em

tests/system/test_observability_options.py

@@ -150,7 +150,6 @@ def test_transaction_abort_then_retry_spans():
     from opentelemetry.trace.status import StatusCode
     from opentelemetry.sdk.trace import TracerProvider
     from opentelemetry.sdk.trace.sampling import ALWAYS_ON
-    from opentelemetry import trace
 
     PROJECT = _helpers.EMULATOR_PROJECT
     CONFIGURATION_NAME = "config-name"
@@ -161,11 +160,8 @@ def test_transaction_abort_then_retry_spans():
     LABELS = {"test": "true"}
 
     counters = dict(aborted=0)
-    already_aborted = False
 
     def select_in_txn(txn):
-        from google.rpc import error_details_pb2
-
         results = txn.execute_sql("SELECT 1")
         for row in results:
             _ = row

tests/unit/test_pool.py

@@ -243,7 +243,7 @@ def test_spans_bind_get(self):
         database._sessions.extend(SESSIONS)
         pool.bind(database)
 
-        with trace_call("pool.Get", SESSIONS[0]) as span:
+        with trace_call("pool.Get", SESSIONS[0]):
             pool.get()
 
         span_list = self.get_finished_spans()