Remove unused import in tests

[ger-benjamin]

For: https://jira.camptocamp.com/browse/GSGMF-261

The last unused vars (except 2 projections in test, but that will be done later)
(All file was already loaded)

[ger-benjamin]

Note:

In the not-webpack-transformed version, there is still these warning, I think I can't remove any more:

/home/bgerber/Documents/ngeo/src/ngeo.js
  11:1  warning  Expected goog.provide('ngeo.index') to be at ngeo/index.js instead of ngeo/ngeo.js  googshift/valid-provide-and-module
  15:1  warning  Unused goog.require('ol.format.IGC');                                               googshift/no-unused-requires
  17:1  warning  Unused goog.require('ol.source.Raster');                                            googshift/no-unused-requires
  19:1  warning  Unused goog.require('ol.VectorTile');                                               googshift/no-unused-requires
  21:1  warning  Unused goog.require('ol.Overlay');                                                  googshift/no-unused-requires
  23:1  warning  Unused goog.require('ol.control.ScaleLine');                                        googshift/no-unused-requires
  25:1  warning  Unused goog.require('ol.source.WMTS');                                              googshift/no-unused-requires
  27:1  warning  Unused goog.require('ol.style.Icon');                                               googshift/no-unused-requires
  29:1  warning  Unused goog.require('ol.layer.VectorTile');                                         googshift/no-unused-requires
  32:1  warning  Unused goog.require('ol.Map');                                                      googshift/no-unused-requires
  34:1  warning  Unused goog.require('ol.source.Vector');                                            googshift/no-unused-requires
  36:1  warning  Unused goog.require('ol.render.Feature');                                           googshift/no-unused-requires
  38:1  warning  Unused goog.require('ol.source.VectorTile');                                        googshift/no-unused-requires
  40:1  warning  Unused goog.require('ol.style.AtlasManager');                                       googshift/no-unused-requires

/home/bgerber/Documents/ngeo/src/proj/epsg32631.js
  6:1  warning  Unused goog.require('ol.proj.proj4');  googshift/no-unused-requires

/home/bgerber/Documents/ngeo/src/proj/epsg21781.js
  6:1  warning  Unused goog.require('ol.proj.proj4');  googshift/no-unused-requires

/home/bgerber/Documents/ngeo/src/proj/epsg2154.js
  6:1  warning  Unused goog.require('ol.proj.proj4');  googshift/no-unused-requires

/home/bgerber/Documents/ngeo/src/proj/epsg3947.js
  6:1  warning  Unused goog.require('ol.proj.proj4');  googshift/no-unused-requires

/home/bgerber/Documents/ngeo/src/proj/epsg27572.js
  6:1  warning  Unused goog.require('ol.proj.proj4');  googshift/no-unused-requires

/home/bgerber/Documents/ngeo/src/proj/epsg2056.js
  6:1  warning  Unused goog.require('ol.proj.proj4');  googshift/no-unused-requires

/home/bgerber/Documents/ngeo/test/spec/beforeeach.js
  3:1  warning  Expected goog.provide('app') to be at app.js instead of ngeo/test/beforeeach.js  googshift/valid-provide-and-module

/home/bgerber/Documents/ngeo/test/spec/services/autoprojection.spec.js
  1:1  warning  Unused goog.require('ngeo.proj.EPSG21781');  googshift/no-unused-requires

/home/bgerber/Documents/ngeo/contribs/gmf/src/gmf.js
  1:1  warning  Expected goog.provide('gmf') to be at gmf.js instead of gmf/gmf.js  googshift/valid-provide-and-module

/home/bgerber/Documents/ngeo/contribs/gmf/src/objectediting/component.js
  13:1  warning  Unused goog.require('ngeo.jstsExports');  googshift/no-unused-requires

/home/bgerber/Documents/ngeo/contribs/gmf/apps/appmodule.js
  6:1  warning  Expected goog.provide('app') to be at app.js instead of apps/appmodule.js  googshift/valid-provide-and-module

/home/bgerber/Documents/ngeo/contribs/gmf/apps/desktop_alt/js/controller.js
  7:1  warning  Expected goog.provide('app.desktop_alt.Controller') to be at app/desktop_alt/controller.js instead of apps/desktop_alt/js/controller.js  googshift/valid-provide-and-module

/home/bgerber/Documents/ngeo/contribs/gmf/apps/oeview/js/controller.js
  7:1  warning  Expected goog.provide('app.oeview.Controller') to be at app/oeview/controller.js instead of apps/oeview/js/controller.js  googshift/valid-provide-and-module

/home/bgerber/Documents/ngeo/contribs/gmf/apps/mobile/js/controller.js
  7:1  warning  Expected goog.provide('app.mobile.Controller') to be at app/mobile/controller.js instead of apps/mobile/js/controller.js  googshift/valid-provide-and-module

/home/bgerber/Documents/ngeo/contribs/gmf/apps/mobile_alt/js/controller.js
  7:1  warning  Expected goog.provide('app.mobile_alt.Controller') to be at app/mobile_alt/controller.js instead of apps/mobile_alt/js/controller.js  googshift/valid-provide-and-module

/home/bgerber/Documents/ngeo/contribs/gmf/apps/oeedit/js/controller.js
  7:1  warning  Expected goog.provide('app.oeedit.Controller') to be at app/oeedit/controller.js instead of apps/oeedit/js/controller.js  googshift/valid-provide-and-module

/home/bgerber/Documents/ngeo/contribs/gmf/apps/desktop/js/controller.js
  7:1  warning  Expected goog.provide('app.desktop.Controller') to be at app/desktop/controller.js instead of apps/desktop/js/controller.js  googshift/valid-provide-and-module