Revert "Add noncopyable"

This reverts commit 11061ee5da.

include/mbgl/platform/default/glfw_view.hpp

@@ -3,14 +3,13 @@
 
 #include <mbgl/mbgl.hpp>
 #include <mbgl/util/time.hpp>
-#include <mbgl/util/noncopyable.hpp>
 
 #ifdef NVIDIA
 #define GLFW_INCLUDE_ES2
 #endif
 #include <GLFW/glfw3.h>
 
-class GLFWView : public mbgl::View, private mbgl::util::noncopyable {
+class GLFWView : public mbgl::View {
 public:
     GLFWView(bool fullscreen = false);
     ~GLFWView();

include/mbgl/platform/default/headless_display.hpp

@@ -1,12 +1,11 @@
 #ifndef MBGL_COMMON_HEADLESS_DISPLAY
 #define MBGL_COMMON_HEADLESS_DISPLAY
 
-#include <mbgl/util/noncopyable.hpp>
 #include "headless_view.hpp"
 
 namespace mbgl {
 
-class HeadlessDisplay, private mbgl::util::noncopyable {
+class HeadlessDisplay {
 public:
     HeadlessDisplay();
     ~HeadlessDisplay();

include/mbgl/platform/default/headless_view.hpp

@@ -9,7 +9,6 @@
 #define MBGL_USE_GLX 1
 #endif
 
-#include <mbgl/util/noncopyable.hpp>
 #include <mbgl/map/view.hpp>
 #include <mbgl/platform/gl.hpp>
 
@@ -19,7 +18,7 @@ namespace mbgl {
 
 class HeadlessDisplay;
 
-class HeadlessView : public View, private util::noncopyable {
+class HeadlessView : public View {
 public:
     HeadlessView();
     HeadlessView(std::shared_ptr<HeadlessDisplay> display);