Remove enums values containing typos that were deprecated in 2019.10.

doc/changelog.dox

@@ -1751,6 +1751,10 @@ See also:
     -   Templated @cpp Image*::data() @ce APIs returning a pointer which
         allowed for dangerous data access without any bounds, type or layout
         checks, use @ref Image::pixels() instead
+    -   @cpp GL::TextureFormat::R3B3G2 @ce containing a typo, use
+        @ref GL::TextureFormat::R3G3B2 instead
+    -   @cpp Platform::GlfwApplication::Key::Smicolon @ce containing a typo,
+        use @ref Platform::GlfwApplication::Key::Semicolon instead
     -   @cpp Trade::ImporterFileCallbackPolicy @ce, use the
         @ref InputFileCallbackPolicy enum instead; additionally there was
         @cpp Trade::ImporterFileCallbackPolicy::LoadPernament @ce containing a

src/Magnum/GL/TextureFormat.h

@@ -34,10 +34,6 @@
 #include "Magnum/GL/OpenGL.h"
 #include "Magnum/GL/visibility.h"
 
-#ifdef MAGNUM_BUILD_DEPRECATED
-#include <Corrade/Utility/Macros.h>
-#endif
-
 namespace Magnum { namespace GL {
 
 /**
@@ -953,14 +949,6 @@ enum class TextureFormat: GLenum {
      */
     R3G3B2 = GL_R3_G3_B2,
 
-    #ifdef MAGNUM_BUILD_DEPRECATED
-    /** RGB, normalized unsigned, red and green component 3bit, blue 2bit.
-     * @m_deprecated_since{2019,10} This one had a misleading typo in the name,
-     *      use @ref TextureFormat::R3G3B2 instead.
-     */
-    R3B3G2 CORRADE_DEPRECATED_ENUM("use R3G3B2 instead") = R3G3B2,
-    #endif
-
     /**
      * RGB, each component normalized unsigned 4bit.
      * @requires_gl Packed 12bit types are not available in OpenGL ES or WebGL.

src/Magnum/Platform/GlfwApplication.h

@@ -1180,14 +1180,6 @@ enum class GlfwApplication::Key: Int {
     Percent = '%',
 
     Semicolon = GLFW_KEY_SEMICOLON,     /**< Semicolon (`;`) */
-
-    #ifdef MAGNUM_BUILD_DEPRECATED
-    /** Semicolon (`;`)
-     * @m_deprecated_since{2019,01} Use @ref Key::Semicolon instead.
-     */
-    Smicolon CORRADE_DEPRECATED_ENUM("use Key::Semicolon instead") = Semicolon,
-    #endif
-
     Equal = GLFW_KEY_EQUAL,             /**< Equal */
 
     /**