Revert "Xiaomi/Aqara OTA-firmware (#28)" (#34)

This reverts commit 293b99e011.

scripts/add.js

@@ -19,7 +19,6 @@ const manufacturerNameLookup = {
     4151: 'Eurotronic',
     4678: 'Danfoss',
     4687: 'Gledopto',
-    4447: 'Xiaomi',
 };
 
 const main = async () => {
@@ -99,14 +98,7 @@ const main = async () => {
         indexJSON[index] = entry;
 
         if (entry.path && entry.path !== destination) {
-            try {
-                fs.unlinkSync(path.resolve(entry.path));
-            } catch (err) {
-                if (err && err.code != 'ENOENT') {
-                    console.error("Error in call to fs.unlink", err);
-                    throw err;
-                }
-            }
+            fs.unlinkSync(entry.path);
         }
     } else {
         console.log(`Added new entry (${JSON.stringify(entry)})`);