Revert "test: fix max wire versions"

This reverts commit aa8b839.

Author: durran

test/spec/server-discovery-and-monitoring/rs/primary_mismatched_me_not_removed.json

@@ -18,7 +18,7 @@
             "primary": "localhost:27017",
             "me": "a:27017",
             "minWireVersion": 0,
-            "maxWireVersion": 25
+            "maxWireVersion": 7
           }
         ]
       ],
@@ -55,7 +55,7 @@
             "primary": "localhost:27017",
             "me": "localhost:27018",
             "minWireVersion": 0,
-            "maxWireVersion": 25
+            "maxWireVersion": 7
           }
         ]
       ],

test/spec/server-discovery-and-monitoring/rs/primary_mismatched_me_not_removed.yml

@@ -19,7 +19,7 @@ phases: [
         # servers from a primary isWritablePrimary are added to the working server set
         me: "a:27017",
         minWireVersion: 0,
-        maxWireVersion: 25
+        maxWireVersion: 7
       }]
     ],
     outcome: {
@@ -53,7 +53,7 @@ phases: [
         primary: "localhost:27017",
         me: "localhost:27018",
         minWireVersion: 0,
-        maxWireVersion: 25
+        maxWireVersion: 7
       }]
     ],
     outcome: {