Handle single_instance_allowed centrally (home-assistant#181143)

Author: zweckj

homeassistant/components/cielo_home/strings.json

@@ -1,8 +1,7 @@
 {
   "config": {
     "abort": {
-      "already_configured": "[%key:common::config_flow::abort::already_configured_account%]",
-      "single_instance_allowed": "[%key:common::config_flow::abort::single_instance_allowed%]"
+      "already_configured": "[%key:common::config_flow::abort::already_configured_account%]"
     },
     "error": {
       "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",

homeassistant/components/deako/strings.json

@@ -1,8 +1,5 @@
 {
   "config": {
-    "abort": {
-      "single_instance_allowed": "[%key:common::config_flow::abort::single_instance_allowed%]"
-    },
     "step": {
       "confirm": {
         "description": "Please confirm setting up the Deako integration"

homeassistant/components/dialogflow/strings.json

@@ -2,7 +2,6 @@
   "config": {
     "abort": {
       "reconfigure_successful": "**Reconfiguration was successful**\n\nGo to the [webhook service of Dialogflow]({dialogflow_url}) and update the webhook with following settings:\n\n- URL: `{webhook_url}`\n- Method: POST\n- Content Type: application/json\n\nSee [the documentation]({docs_url}) for further details.",
-      "single_instance_allowed": "[%key:common::config_flow::abort::single_instance_allowed%]",
       "webhook_not_internet_accessible": "[%key:common::config_flow::abort::webhook_not_internet_accessible%]"
     },
     "create_entry": {

homeassistant/components/downloader/strings.json

@@ -1,8 +1,5 @@
 {
   "config": {
-    "abort": {
-      "single_instance_allowed": "[%key:common::config_flow::abort::single_instance_allowed%]"
-    },
     "error": {
       "directory_does_not_exist": "The directory could not be reached. Please check your settings."
     },

homeassistant/components/dsmr_reader/strings.json

@@ -1,8 +1,5 @@
 {
   "config": {
-    "abort": {
-      "single_instance_allowed": "[%key:common::config_flow::abort::single_instance_allowed%]"
-    },
     "step": {
       "confirm": {
         "description": "Make sure to configure the 'split topic' data sources in DSMR Reader."

homeassistant/components/ecobee/strings.json

@@ -1,8 +1,7 @@
 {
   "config": {
     "abort": {
-      "reauth_successful": "[%key:common::config_flow::abort::reauth_successful%]",
-      "single_instance_allowed": "[%key:common::config_flow::abort::single_instance_allowed%]"
+      "reauth_successful": "[%key:common::config_flow::abort::reauth_successful%]"
     },
     "error": {
       "invalid_auth": "[%key:common::config_flow::error::invalid_auth%]",

homeassistant/components/escea/strings.json

@@ -1,8 +1,5 @@
 {
   "config": {
-    "abort": {
-      "single_instance_allowed": "[%key:common::config_flow::abort::single_instance_allowed%]"
-    },
     "step": {
       "confirm": {
         "description": "Do you want to set up an Escea fireplace?"

homeassistant/components/essent/strings.json

@@ -3,7 +3,6 @@
     "abort": {
       "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
       "invalid_data": "Received invalid data from Essent",
-      "single_instance_allowed": "[%key:common::config_flow::abort::single_instance_allowed%]",
       "unknown": "[%key:common::config_flow::error::unknown%]"
     },
     "step": {

homeassistant/components/fastdotcom/strings.json

@@ -1,8 +1,5 @@
 {
   "config": {
-    "abort": {
-      "single_instance_allowed": "[%key:common::config_flow::abort::single_instance_allowed%]"
-    },
     "step": {
       "user": {
         "description": "Do you want to start the setup? The initial setup will take about 30-40 seconds."

homeassistant/components/fjaraskupan/strings.json

@@ -1,8 +1,5 @@
 {
   "config": {
-    "abort": {
-      "single_instance_allowed": "[%key:common::config_flow::abort::single_instance_allowed%]"
-    },
     "step": {
       "confirm": {
         "description": "Do you want to set up Fjäråskupan?"