test: Remove conditional for pgVersion95 in JsonOperatorSpec

pgVersion95 is the minimum already.

test/Feature/JsonOperatorSpec.hs

@@ -8,7 +8,7 @@ import Test.Hspec.Wai
 import Test.Hspec.Wai.JSON
 
 import PostgREST.Config.PgVersion (PgVersion, pgVersion112,
-                                   pgVersion121, pgVersion95)
+                                   pgVersion121)
 
 import Protolude  hiding (get)
 import SpecHelper
@@ -209,7 +209,6 @@ spec actualPgVersion = describe "json and jsonb operators" $ do
         `shouldRespondWith`
           [json| [{ "data": { "id":" \"escaped" } }] |]
 
-  when (actualPgVersion >= pgVersion95) $
   context "json array negative index" $ do
     it "can select with negative indexes" $ do
       get "/json_arr?select=data->>-1::int&id=in.(1,2)" `shouldRespondWith`