Removed Shader::unbind (was not used internally, less consistent with sf::Texture and could be confusing for users)

include/SFML/Graphics/Shader.hpp

@@ -457,26 +457,11 @@ public :
     /// window.setActive();
     /// shader.bind();
     /// ... render OpenGL geometry ...
-    /// shader.unbind();
     /// \endcode
     ///
-    /// \see unbind
-    ///
     ////////////////////////////////////////////////////////////
     void bind() const;
 
-    ////////////////////////////////////////////////////////////
-    /// \brief Unbind the shader (deactivate it)
-    ///
-    /// This function is normally for internal use only, unless
-    /// you want to use the shader with a custom OpenGL rendering
-    /// instead of a SFML drawable.
-    ///
-    /// \see bind
-    ///
-    ////////////////////////////////////////////////////////////
-    void unbind() const;
-
     ////////////////////////////////////////////////////////////
     /// \brief Tell whether or not the system supports shaders
     ///

src/SFML/Graphics/Shader.cpp

@@ -429,15 +429,6 @@ void Shader::bind() const
 }
 
 
-////////////////////////////////////////////////////////////
-void Shader::unbind() const
-{
-    ensureGlContext();
-
-    glCheck(glUseProgramObjectARB(0));
-}
-
-
 ////////////////////////////////////////////////////////////
 bool Shader::isAvailable()
 {