Fixed overflow when triggering results messages

Because of the change made previously to make events global, any
time a result message was triggered there would be a stack overflow.
This was because we were re-triggering the event locally if it
happened on a global level, which would start the loop.

This has been fixed so the event is never caught locally, but
instead uses the global handler.

dist/js/select2.amd.full.js

@@ -524,10 +524,6 @@ define('select2/results',[
     });
 
     container.on('results:message', function (params) {
-      self.trigger('results:message', params);
-    });
-
-    this.on('results:message', function (params) {
       self.displayMessage(params);
     });
 

dist/js/select2.amd.js

@@ -524,10 +524,6 @@ define('select2/results',[
     });
 
     container.on('results:message', function (params) {
-      self.trigger('results:message', params);
-    });
-
-    this.on('results:message', function (params) {
       self.displayMessage(params);
     });
 

dist/js/select2.full.js

@@ -10059,10 +10059,6 @@ define('select2/results',[
     });
 
     container.on('results:message', function (params) {
-      self.trigger('results:message', params);
-    });
-
-    this.on('results:message', function (params) {
       self.displayMessage(params);
     });
 

dist/js/select2.js

@@ -952,10 +952,6 @@ define('select2/results',[
     });
 
     container.on('results:message', function (params) {
-      self.trigger('results:message', params);
-    });
-
-    this.on('results:message', function (params) {
       self.displayMessage(params);
     });
 

src/js/select2/results.js

@@ -360,10 +360,6 @@ define([
     });
 
     container.on('results:message', function (params) {
-      self.trigger('results:message', params);
-    });
-
-    this.on('results:message', function (params) {
       self.displayMessage(params);
     });