removes mwm and tag field from explorer tx

plugins/spa/explorer_routes.go

@@ -23,8 +23,6 @@ type ExplorerTx struct {
 	Timestamp                uint   `json:"timestamp"`
 	Trunk                    Hash   `json:"trunk"`
 	Branch                   Hash   `json:"branch"`
-	Tag                      Trytes `json:"tag"`
-	Nonce                    Trytes `json:"nonce"`
 	Solid                    bool   `json:"solid"`
 	MWM                      int    `json:"mwm"`
 }

plugins/spa/frontend/src/app/stores/ExplorerStore.tsx

@@ -12,9 +12,7 @@ export class Transaction {
     timestamp: number;
     trunk: string;
     branch: string;
-    tag: string;
     solid: boolean;
-    mwm: number;
 }
 
 class AddressResult {