Small fixes and cleanup

packages/web3-wrapper/src/web3_wrapper.ts

@@ -406,32 +406,6 @@ export class Web3Wrapper {
         }
         return receipt;
     }
-    /**
-     * Start the CPU mining process with the given number of threads and
-     * generate a new DAG if need be.
-     * @param   threads The number of threads to mine on.
-     */
-    public async minerStartAsync(threads: number = 1): Promise<void> {
-        await this._sendRawPayloadAsync<boolean>({
-            method: 'miner_start',
-            params: [threads],
-        });
-    }
-    /**
-     * Stop the CPU mining process.
-     * @param   threads The number of threads to mine on.
-     */
-    public async minerStopAsync(): Promise<void> {
-        await this._sendRawPayloadAsync<boolean>({ method: 'miner_stop', params: [] });
-    }
-    /**
-     * Returns true if client is actively mining new blocks.
-     * @returns A boolean indicating whether the node is currently mining.
-     */
-    public async isMiningAsync(): Promise<boolean> {
-        const isMining = await promisify<boolean>(this._web3.eth.getMining)();
-        return isMining;
-    }
     /**
      * Sets the current head of the local chain by block number. Note, this is a
      * destructive action and may severely damage your chain. Use with extreme