vcl: [loplugin:badstatics] X11OpenGLDeviceInfo

class X11OpenGLDeviceInfo actually looks harmless but it has an out-of-line
destructor so the plugin can't see that it's harmless, so use
default destructor instead.

Change-Id: I50de6916360a944cbda3a85f4062e72e4c6d3768

vcl/inc/opengl/DeviceInfo.hxx

@@ -13,7 +13,7 @@
 class OpenGLDeviceInfo
 {
 public:
-    virtual ~OpenGLDeviceInfo();
+    virtual ~OpenGLDeviceInfo() = 0;
 
     virtual bool isDeviceBlocked() = 0;
 };

vcl/inc/opengl/x11/X11DeviceInfo.hxx

@@ -40,7 +40,6 @@ private:
 
 public:
     X11OpenGLDeviceInfo();
-    virtual ~X11OpenGLDeviceInfo() override;
 
     virtual bool isDeviceBlocked() override;
 

vcl/opengl/x11/X11DeviceInfo.cxx

@@ -117,10 +117,6 @@ X11OpenGLDeviceInfo::X11OpenGLDeviceInfo():
     GetData();
 }
 
-X11OpenGLDeviceInfo::~X11OpenGLDeviceInfo()
-{
-}
-
 void X11OpenGLDeviceInfo::GetData()
 {
     if (!glx::glxtest_pipe)