fix get servers

Author: leandrogilcarrano

src/ApiMethodDocumentation.js

@@ -231,15 +231,7 @@ export class ApiMethodDocumentation extends AmfHelperMixin(LitElement) {
       * Bindings for the type document.
       * This is a map of the type name to the binding name.
       */
-      bindings: {type: Array},
-      /**
-       * Adds a servers to async API
-       *
-       * @param {string} url - The URL of the server.
-       * @param {object} [description] - An object containing a string `description` property.
-       */
-      servers: {type:Array},
-      _servers: {type:Array},
+      bindings: {type: Array}
     };
   }
 
@@ -343,21 +335,6 @@ export class ApiMethodDocumentation extends AmfHelperMixin(LitElement) {
     this._processServerInfo();
   }
 
-  get servers() {
-    return this._servers;
-  }
-
-  set servers(value) {
-   
-    const old = this._servers;
-    /* istanbul ignore if */
-    if (old === value) {
-      return;
-    }
-    this._servers = value;
-    this.requestUpdate('servers', old);
-  }
-
   get _titleHidden() {
     if (!this.noTryIt) {
       return false;
@@ -920,7 +897,6 @@ export class ApiMethodDocumentation extends AmfHelperMixin(LitElement) {
     <api-url
       .amf="${this.amf}"
       .server="${this.server}"
-      .servers="${this.servers}"
       .endpoint="${this.endpoint}"
       .apiVersion="${this.apiVersion}"
       .baseUri="${this.baseUri}"
@@ -1248,8 +1224,7 @@ export class ApiMethodDocumentation extends AmfHelperMixin(LitElement) {
     const {
       amf,
       compatibility,
-      graph,
-      servers
+      graph
     } = this;
     return html`
       <div class="callback-section">
@@ -1258,7 +1233,6 @@ export class ApiMethodDocumentation extends AmfHelperMixin(LitElement) {
           .amf="${amf}"
           .method="${method}"
           .endpoint="${endpoint}"
-          .servers="${servers}"
           ?compatibility="${compatibility}"
           ?graph="${graph}"
           noTryit

src/ApiUrl.js

@@ -59,14 +59,6 @@ export class ApiUrl extends AmfHelperMixin(LitElement) {
        * Optional, operation id that is render only for async api
        */
       operationId:{type: String},
-      /**
-       * Adds a servers to async API
-       *
-       * @param {string} url - The URL of the server.
-       * @param {object} [description] - An object containing a string `description` property.
-       */
-      servers: {type:Array},
-      _servers: {type:Array},
       _url: { type: String },
       _method: { type: String },
       _protocol: { type: String },
@@ -126,16 +118,11 @@ export class ApiUrl extends AmfHelperMixin(LitElement) {
   }
 
   get servers() {
-    return this._servers;
-  }
-
-  set servers(value) {
-    const old = this._servers;
-    if (old === value) {
-      return;
+    let endpointId
+    if(this.endpoint){
+      endpointId = this.endpoint["@id"]
     }
-    this._servers = value;
-    this.requestUpdate('servers', old);
+    return this._getServers({ endpointId });
   }
 
   get endpoint() {