Refactor root_prop in run_coinbase

Author: shamil-gadelshin

pallets/subtensor/src/coinbase/run_coinbase.rs

@@ -178,13 +178,6 @@ impl<T: Config> Pallet<T> {
         // --- 3. Inject ALPHA for participants.
         let cut_percent: U96F32 = Self::get_float_subnet_owner_cut();
 
-        // Get total TAO on root.
-        let root_tao: U96F32 = asfloat!(SubnetTAO::<T>::get(NetUid::ROOT));
-        log::debug!("root_tao: {root_tao:?}");
-        // Get tao_weight
-        let tao_weight: U96F32 = root_tao.saturating_mul(Self::get_tao_weight());
-        log::debug!("tao_weight: {tao_weight:?}");
-
         for netuid_i in subnets_to_emit_to.iter() {
             // Get alpha_out for this block.
             let mut alpha_out_i: U96F32 = *alpha_out.get(netuid_i).unwrap_or(&asfloat!(0));
@@ -205,14 +198,8 @@ impl<T: Config> Pallet<T> {
                 *total = total.saturating_add(tou64!(owner_cut_i).into());
             });
 
-            // Get ALPHA issuance.
-            let alpha_issuance: U96F32 = asfloat!(Self::get_alpha_issuance(*netuid_i));
-            log::debug!("alpha_issuance: {alpha_issuance:?}");
-
             // Get root proportional dividends.
-            let root_proportion: U96F32 = tao_weight
-                .checked_div(tao_weight.saturating_add(alpha_issuance))
-                .unwrap_or(asfloat!(0.0));
+            let root_proportion = Self::root_proportion(*netuid_i);
             log::debug!("root_proportion: {root_proportion:?}");
 
             // Get root alpha from root prop.