tools: enable no-else-return lint rule

Refs: https://github.com/nodejs/node/pull/32644
Refs: https://github.com/nodejs/node/pull/32662

PR-URL: https://github.com/nodejs/node/pull/32667
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>

benchmark/es/spread-bench.js

@@ -16,11 +16,10 @@ function makeTest(count, rest) {
     return function test(...args) {
       assert.strictEqual(count, args.length);
     };
-  } else {
-    return function test() {
-      assert.strictEqual(count, arguments.length);
-    };
   }
+  return function test() {
+    assert.strictEqual(count, arguments.length);
+  };
 }
 
 function main({ n, context, count, rest, method }) {

benchmark/scatter.js

@@ -30,9 +30,8 @@ let printHeader = true;
 function csvEncodeValue(value) {
   if (typeof value === 'number') {
     return value.toString();
-  } else {
-    return `"${value.replace(/"/g, '""')}"`;
   }
+  return `"${value.replace(/"/g, '""')}"`;
 }
 
 (function recursive(i) {