Fixed bad merge which left a few examples not building in docking branch.

examples/example_glfw_metal/main.mm

@@ -59,7 +59,6 @@ int main(int, char**)
     io.ConfigDpiScaleViewports = true;      // [Experimental] Scale Dear ImGui and Platform Windows when Monitor DPI changes.
 
     // When viewports are enabled we tweak WindowRounding/WindowBg so platform windows can look identical to regular ones.
-    ImGuiStyle& style = ImGui::GetStyle();
     if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
     {
         style.WindowRounding = 0.0f;

examples/example_glfw_opengl2/main.cpp

@@ -70,7 +70,6 @@ int main(int, char**)
     io.ConfigDpiScaleViewports = true;      // [Experimental] Scale Dear ImGui and Platform Windows when Monitor DPI changes.
 
     // When viewports are enabled we tweak WindowRounding/WindowBg so platform windows can look identical to regular ones.
-    ImGuiStyle& style = ImGui::GetStyle();
     if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
     {
         style.WindowRounding = 0.0f;

examples/example_glfw_vulkan/main.cpp

@@ -406,7 +406,6 @@ int main(int, char**)
     io.ConfigDpiScaleViewports = true;      // [Experimental] Scale Dear ImGui and Platform Windows when Monitor DPI changes.
 
     // When viewports are enabled we tweak WindowRounding/WindowBg so platform windows can look identical to regular ones.
-    ImGuiStyle& style = ImGui::GetStyle();
     if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
     {
         style.WindowRounding = 0.0f;

examples/example_win32_opengl3/main.cpp

@@ -116,7 +116,6 @@ int main(int, char**)
     io.ConfigDpiScaleViewports = true;      // [Experimental] Scale Dear ImGui and Platform Windows when Monitor DPI changes.
 
     // When viewports are enabled we tweak WindowRounding/WindowBg so platform windows can look identical to regular ones.
-    ImGuiStyle& style = ImGui::GetStyle();
     if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
     {
         style.WindowRounding = 0.0f;

examples/example_win32_vulkan/main.cpp

@@ -409,7 +409,6 @@ int main(int, char**)
     io.ConfigDpiScaleViewports = true;      // [Experimental] Scale Dear ImGui and Platform Windows when Monitor DPI changes.
 
     // When viewports are enabled we tweak WindowRounding/WindowBg so platform windows can look identical to regular ones.
-    ImGuiStyle& style = ImGui::GetStyle();
     if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
     {
         style.WindowRounding = 0.0f;