[fix] #1234 Remove ARM specific code

app/modules/prover/lib/engine.ts

@@ -36,12 +36,6 @@ export class PowEngine {
     if (this.cluster.hasProofPending) {
       await this.cluster.cancelWork()
     }
-    
-        const cpus = os.cpus()
-    
-        if (os.arch().match(/arm/) || cpus[0].model.match(/Atom/)) {
-          stuff.newPoW.conf.nbCores /= 2; // Make sure that only once each physical core is used (for Hyperthreading).
-        }
     return await this.cluster.proveByWorkers(stuff)
   }