docs: remove my email from docs examples (#17325)

I dont want emails from companies who test
alert notifiers :)

docs/sources/http_api/alerting_notification_channels.md

@@ -54,7 +54,7 @@ Content-Type: application/json
     "sendReminder": false,
     "disableResolveMessage": false,
     "settings": {
-      "addresses": "carl@grafana.com;dev@grafana.com"
+      "addresses": "dev@grafana.com"
     },
     "created": "2018-04-23T14:44:09+02:00",
     "updated": "2018-08-20T15:47:49+02:00"
@@ -93,7 +93,7 @@ Content-Type: application/json
   "sendReminder": false,
   "disableResolveMessage": false,
   "settings": {
-    "addresses": "carl@grafana.com;dev@grafana.com"
+    "addresses": "dev@grafana.com"
   },
   "created": "2018-04-23T14:44:09+02:00",
   "updated": "2018-08-20T15:47:49+02:00"
@@ -130,7 +130,7 @@ Content-Type: application/json
   "sendReminder": false,
   "disableResolveMessage": false,
   "settings": {
-    "addresses": "carl@grafana.com;dev@grafana.com"
+    "addresses": "dev@grafana.com"
   },
   "created": "2018-04-23T14:44:09+02:00",
   "updated": "2018-08-20T15:47:49+02:00"
@@ -158,7 +158,7 @@ Authorization: Bearer eyJrIjoiT0tTcG1pUlY2RnVKZTFVaDFsNFZXdE9ZWmNrMkZYbk
   "isDefault": false,
   "sendReminder": false,
   "settings": {
-    "addresses": "carl@grafana.com;dev@grafana.com"
+    "addresses": "dev@grafana.com"
   }
 }
 ```
@@ -177,7 +177,7 @@ Content-Type: application/json
   "isDefault": false,
   "sendReminder": false,
   "settings": {
-    "addresses": "carl@grafana.com;dev@grafana.com"
+    "addresses": "dev@grafana.com"
   },
   "created": "2018-04-23T14:44:09+02:00",
   "updated": "2018-08-20T15:47:49+02:00"
@@ -206,7 +206,7 @@ Authorization: Bearer eyJrIjoiT0tTcG1pUlY2RnVKZTFVaDFsNFZXdE9ZWmNrMkZYbk
   "sendReminder": true,
   "frequency": "15m",
   "settings": {
-    "addresses": "carl@grafana.com;dev@grafana.com"
+    "addresses": "dev@grafana.com"
   }
 }
 ```
@@ -226,7 +226,7 @@ Content-Type: application/json
   "sendReminder": true,
   "frequency": "15m",
   "settings": {
-    "addresses": "carl@grafana.com;dev@grafana.com"
+    "addresses": "dev@grafana.com"
   },
   "created": "2017-01-01 12:34",
   "updated": "2017-01-01 12:34"
@@ -256,7 +256,7 @@ Authorization: Bearer eyJrIjoiT0tTcG1pUlY2RnVKZTFVaDFsNFZXdE9ZWmNrMkZYbk
   "sendReminder": true,
   "frequency": "15m",
   "settings": {
-    "addresses": "carl@grafana.com;dev@grafana.com"
+    "addresses": "dev@grafana.com"
   }
 }
 ```
@@ -276,7 +276,7 @@ Content-Type: application/json
   "sendReminder": true,
   "frequency": "15m",
   "settings": {
-    "addresses": "carl@grafana.com;dev@grafana.com"
+    "addresses": "dev@grafana.com"
   },
   "created": "2017-01-01 12:34",
   "updated": "2017-01-01 12:34"
@@ -353,7 +353,7 @@ Authorization: Bearer eyJrIjoiT0tTcG1pUlY2RnVKZTFVaDFsNFZXdE9ZWmNrMkZYbk
 {
   "type":  "email",
   "settings": {
-    "addresses": "carl@grafana.com;dev@grafana.com"
+    "addresses": "dev@grafana.com"
   }
 }
 ```