GL: removed deprecated CubeMapTexture::Coordinate.

Deprecated since 2016.

doc/changelog.dox

@@ -316,6 +316,8 @@ See also:
     @cpp GL::Context::DetectedDriver::ProbablyAngle @ce aliases deprecated
     since 2017, use consistently-named @ref GL::Context::DetectedDriver::Amd
     and @ref GL::Context::DetectedDriver::Angle instead
+-   Removed @cpp GL::CubeMapTexture::Coordinate @ce deprecated since 2016, use
+    @ref GL::CubeMapCoordinate instead
 -   Removed the `Shapes` library together with `DebugTools::ShapeRenderer`,
     which was a failed design experiment deprecated since version 2018.10
     (see [mosra/magnum#148](https://github.com/mosra/magnum/issues/148))

src/Magnum/GL/CubeMapTexture.h

@@ -91,14 +91,6 @@ class MAGNUM_GL_EXPORT CubeMapTexture: public AbstractTexture {
     friend Implementation::TextureState;
 
     public:
-        #ifdef MAGNUM_BUILD_DEPRECATED
-        /**
-         * @brief @copybrief CubeMapCoordinate
-         * @deprecated Use @ref CubeMapCoordinate instead.
-         */
-        typedef CORRADE_DEPRECATED("use CubeMapCoordinate instead") CubeMapCoordinate Coordinate;
-        #endif
-
         /**
          * @brief Max supported size of one side of cube map texture
          *