Add model-viewer script via MW php method

Signed-off-by: Justin Georgi <justin.georgi@gmail.com>

modules/glmv.js

@@ -1,9 +1,3 @@
-let modelLoad = document.createElement('script')
-modelLoad.setAttribute('type','module')
-modelLoad.setAttribute('src','https://ajax.googleapis.com/ajax/libs/model-viewer/3.5.0/model-viewer.min.js')
-let headElem = document.getElementsByTagName('head')[0]
-headElem.appendChild(modelLoad)
-
 /**
  * Sets listener and attributes on model-viewer to
  * allow for click registering of a new hotspot