remove obsolete lines

src/common/subsystems.hpp

@@ -651,7 +651,6 @@ std::string get_info() {
     }
 
     ss << "\t  GL sharing: " << (device.isExtensionSupported("cl_khr_gl_sharing") ? "true" : "false") << endl;
-    ss << "\t  GL MSAA sharing: " << (device.isExtensionSupported("cl_khr_gl_msaa_sharing") ? "true" : "false") << endl;
     ss << "\t  VAAPI media sharing: " << (device.isExtensionSupported("cl_intel_va_api_media_sharing") ? "true" : "false") << endl;
     return ss.str();
 }

src/nanovg/nanovg-demo.cpp

@@ -206,7 +206,7 @@ int main(int argc, char **argv) {
         //Release the frame buffer for use by OpenGL
         gl::release_to_gl(frameBuffer);
 
-        //Render using nanovg;
+        //Render using nanovg
         nvg::begin();
         drawColorwheel(nvg::vg, WIDTH - 300, HEIGHT - 300, 250.0f, 250.0f, nvgHue);
         nvg::end();

src/optflow/optflow-demo.cpp

@@ -3,15 +3,12 @@
 constexpr unsigned long WIDTH = 1920;
 constexpr unsigned long HEIGHT = 1080;
 constexpr float SCALE_FACTOR = 0.5f;
-constexpr unsigned long SCALED_WIDTH = WIDTH * SCALE_FACTOR;
-constexpr unsigned long SCALED_HEIGHT = HEIGHT * SCALE_FACTOR;
 constexpr bool OFFSCREEN = false;
 constexpr int VA_HW_DEVICE_INDEX = 0;
 constexpr float SCENE_CHANGE_THRESH = 0.29f;
 constexpr float SCENE_CHANGE_THRESH_DIFF = 0.1f;
 
 #include "../common/subsystems.hpp"
-#include <list>
 #include <vector>
 #include <cstdint>
 #include <string>
@@ -23,7 +20,6 @@ constexpr float SCENE_CHANGE_THRESH_DIFF = 0.1f;
 using std::cerr;
 using std::endl;
 using std::vector;
-using std::list;
 using std::string;
 
 void prepare_background_mask(const cv::UMat& srcGrey, cv::UMat& mask) {