stringUtils.ts: remove call to .replace() method for paths

There is no need anymore to replace backslashes with forward slashes
for paths on Windows, as the Python extension's
`toCommandArgumentForPythonExt` function already handles this correctly.

Signed-off-by: Francesco Giancane <me@fgiancane8.dev>

Author: fgiancane8

src/extension/common/stringUtils.ts

@@ -58,5 +58,8 @@ export function fileToCommandArgumentForPythonExt(source: string): string {
     if (!source) {
         return source;
     }
-    return toCommandArgumentForPythonExt(source).replace(/\\/g, '/');
+
+    let result = toCommandArgumentForPythonExt(source);
+
+    return result;
 }