path: remove unnecessary if statement

There is an `if`-statement in `normalizeString` (a helper function for
`path.normalize`) whose `else`-branch is never taken. This patch
removes it.

PR-URL: #22273
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: James M Snell <[email protected]>

Author: wchargin

lib/path.js

@@ -77,18 +77,16 @@ function normalizeString(path, allowAboveRoot, separator, isPathSeparator) {
             res.charCodeAt(res.length - 2) !== CHAR_DOT) {
           if (res.length > 2) {
             const lastSlashIndex = res.lastIndexOf(separator);
-            if (lastSlashIndex !== res.length - 1) {
-              if (lastSlashIndex === -1) {
-                res = '';
-                lastSegmentLength = 0;
-              } else {
-                res = res.slice(0, lastSlashIndex);
-                lastSegmentLength = res.length - 1 - res.lastIndexOf(separator);
-              }
-              lastSlash = i;
-              dots = 0;
-              continue;
+            if (lastSlashIndex === -1) {
+              res = '';
+              lastSegmentLength = 0;
+            } else {
+              res = res.slice(0, lastSlashIndex);
+              lastSegmentLength = res.length - 1 - res.lastIndexOf(separator);
             }
+            lastSlash = i;
+            dots = 0;
+            continue;
           } else if (res.length === 2 || res.length === 1) {
             res = '';
             lastSegmentLength = 0;