Apply refactoring suggested by @FreeZoneMods

Author: Zegeri

src/xrGame/xr_level_controller.cpp

@@ -37,15 +37,13 @@ void initialize_bindings()
 
 void remap_keys()
 {
-    int idx = 0;
     string128 buff;
     // Log("Keys remap:");
-    while (keyboards[idx].key_name)
+    for (int idx = 0; keyboards[idx].key_name; ++idx)
     {
         buff[0] = 0;
         _keyboard& kb = keyboards[idx];
-        const bool res = pInput->get_dik_name(kb.dik, buff, sizeof(buff));
-        if (res)
+        if (pInput->get_dik_name(kb.dik, buff, sizeof(buff)))
             kb.key_local_name = buff;
         else
         {
@@ -55,7 +53,6 @@ void remap_keys()
         }
 
         // Msg("[%s]-[%s]", kb.key_name, kb.key_local_name.c_str());
-        ++idx;
     }
 }