Remove dead code

See https://app.codecov.io/gh/sinonjs/sinon/pull/2535/blob/lib/sinon/sandbox.js

Author: fatso83

lib/sinon/sandbox.js

@@ -158,23 +158,7 @@ function Sandbox() {
             }
         }
 
-        forEach(collection, function (fake) {
-            if (typeof fake === "function") {
-                privateResetHistory(fake);
-                return;
-            }
-
-            const methods = [];
-            if (fake.get) {
-                push(methods, fake.get);
-            }
-
-            if (fake.set) {
-                push(methods, fake.set);
-            }
-
-            forEach(methods, privateResetHistory);
-        });
+        forEach(collection, privateResetHistory);
     };
 
     sandbox.restore = function restore() {