update storage engine variants

Author: blink1073

.evergreen/generated_configs/variants.yml

@@ -953,21 +953,19 @@ buildvariants:
     tags: [standard-non-linux]
 
   # Storage engine tests
-  - name: storage-inmemory-rhel8-python3.9
+  - name: storage-inmemory-rhel8
     tasks:
       - name: .standard-linux .standalone-noauth-nossl
-    display_name: Storage InMemory RHEL8 Python3.9
+    display_name: Storage InMemory RHEL8
     run_on:
       - rhel87-small
     expansions:
       STORAGE_ENGINE: inmemory
-      PYTHON_BINARY: /opt/python/3.9/bin/python3
-  - name: storage-mmapv1-rhel8-python3.9
+  - name: storage-mmapv1-rhel8
     tasks:
       - name: .standard-linux !.sharded_cluster-auth-ssl .server-4.0
-    display_name: Storage MMAPv1 RHEL8 Python3.9
+    display_name: Storage MMAPv1 RHEL8
     run_on:
       - rhel87-small
     expansions:
       STORAGE_ENGINE: mmapv1
-      PYTHON_BINARY: /opt/python/3.9/bin/python3

.evergreen/scripts/generate_config.py

@@ -283,18 +283,15 @@ def create_storage_engine_variants():
     engines = ["InMemory", "MMAPv1"]
     variants = []
     for engine in engines:
-        python = CPYTHONS[0]
         expansions = dict(STORAGE_ENGINE=engine.lower())
         if engine == engines[0]:
             tasks = [".standard-linux .standalone-noauth-nossl"]
         else:
             # MongoDB 4.2 drops support for MMAPv1
             versions = get_versions_until("4.0")
             tasks = [f".standard-linux !.sharded_cluster-auth-ssl .server-{v}" for v in versions]
-        display_name = get_variant_name(f"Storage {engine}", host, python=python)
-        variant = create_variant(
-            tasks, display_name, host=host, python=python, expansions=expansions
-        )
+        display_name = get_variant_name(f"Storage {engine}", host)
+        variant = create_variant(tasks, display_name, host=host, expansions=expansions)
         variants.append(variant)
     return variants