remove all stake wip

pallets/subtensor/src/staking/move_stake.rs

@@ -119,4 +119,42 @@ impl<T: Config> Pallet<T> {
         // -- 8. Ok and return.
         Ok(())
     }
+
+	pub fn do_remove_all_stake(
+		coldkey: T::AccountId,
+		hotkey: T::AccountId,
+		netuids: Vec<u16>,
+	) -> dispatch::DispatchResult {
+		ensure!(Self::hotkey_account_exists(&hotkey), Error::<T>::HotKeyAccountNotExists);
+
+		// Check that all subnets exist
+		ensure!(netuids.all(|netuid| Self::if_subnet_exist(netuid)), Error::<T>::SubnetNotExists);
+
+		// If no subnets are specified, remove all stake from all subnets
+		if netuids.is_empty() {
+			netuids = Self::get_all_netuids_for_hotkey_and_coldkey(&hotkey, &coldkey);
+		}
+
+		Self::try_increase_staking_counter(&coldkey, &hotkey)?;
+
+		// Set last block for rate limiting
+        let current_block = Self::get_current_block_as_u64();
+        Self::set_last_tx_block(&coldkey, current_block);
+
+		for netuid in netuids {
+			// Check alpha on each netuid
+			let alpha = Alpha::<T>::get((hotkey.clone(), netuid, coldkey.clone()));
+			if alpha > 0 {
+				// Unstake the alpha
+				Self::unstake_from_subnet(
+					&hotkey.clone(),
+					&coldkey.clone(),
+					netuid,
+					alpha,
+				);
+			}
+		}
+
+		Ok(())
+	}
 }