Platform: there is no point in disabling copy/move of Configuration.

The class isn't heavy at all and we don't need to maintain only one
instance.

src/Platform/AbstractXApplication.h

@@ -181,11 +181,6 @@ Double-buffered OpenGL context.
 @todo GLX_ARB_create_context_robustness/EGL_EXT_create_context_robustness
 */
 class AbstractXApplication::Configuration {
-    Configuration(const Configuration&) = delete;
-    Configuration(Configuration&&) = delete;
-    Configuration& operator=(const Configuration&) = delete;
-    Configuration& operator=(Configuration&&) = delete;
-
     public:
         /*implicit*/ Configuration();
         ~Configuration();

src/Platform/GlutApplication.h

@@ -236,11 +236,6 @@ Double-buffered RGBA window with depth and stencil buffers.
 @see @ref GlutApplication(), @ref createContext(), @ref tryCreateContext()
 */
 class GlutApplication::Configuration {
-    Configuration(const Configuration&) = delete;
-    Configuration(Configuration&&) = delete;
-    Configuration& operator=(const Configuration&) = delete;
-    Configuration& operator=(Configuration&&) = delete;
-
     public:
         /*implicit*/ Configuration();
         ~Configuration();

src/Platform/NaClApplication.h

@@ -318,11 +318,6 @@ Double-buffered RGBA canvas with depth and stencil buffers.
 @see @ref NaClApplication(), @ref createContext()
 */
 class NaClApplication::Configuration {
-    Configuration(const Configuration&) = delete;
-    Configuration(Configuration&&) = delete;
-    Configuration& operator=(const Configuration&) = delete;
-    Configuration& operator=(Configuration&&) = delete;
-
     public:
         constexpr /*implicit*/ Configuration(): _size(640, 480), _sampleCount(0) {}
 

src/Platform/Sdl2Application.h

@@ -341,11 +341,6 @@ depth buffer.
 @see @ref Sdl2Application(), @ref createContext(), @ref tryCreateContext()
 */
 class Sdl2Application::Configuration {
-    Configuration(const Configuration&) = delete;
-    Configuration(Configuration&&) = delete;
-    Configuration& operator=(const Configuration&) = delete;
-    Configuration& operator=(Configuration&&) = delete;
-
     public:
         /**
          * @brief Window flag

src/Platform/WindowlessGlxApplication.h

@@ -133,11 +133,6 @@ class WindowlessGlxApplication {
     @ref tryCreateContext()
 */
 class WindowlessGlxApplication::Configuration {
-    Configuration(const Configuration&) = delete;
-    Configuration(Configuration&&) = delete;
-    Configuration& operator=(const Configuration&) = delete;
-    Configuration& operator=(Configuration&&) = delete;
-
     public:
         /*implicit*/ Configuration();
         ~Configuration();

src/Platform/WindowlessNaClApplication.h

@@ -153,11 +153,6 @@ class WindowlessNaClApplication: public pp::Instance, public pp::Graphics3DClien
     @ref tryCreateContext()
 */
 class WindowlessNaClApplication::Configuration {
-    Configuration(const Configuration&) = delete;
-    Configuration(Configuration&&) = delete;
-    Configuration& operator=(const Configuration&) = delete;
-    Configuration& operator=(Configuration&&) = delete;
-
     public:
         constexpr /*implicit*/ Configuration() {}
 };