diff --git a/src/gui/GL.cc b/src/gui/GL.cc
deleted file mode 100644
index 621e4b8..0000000
--- a/src/gui/GL.cc
+++ /dev/null
@@ -1,46 +0,0 @@
-#include "GL.h"
-#include "gl3w.h"
-
-/**
- * Initialize OpenGL.
- *
- * @retval true OpenGL was loaded successfully.
- * @retval false Loading OpenGL failed.
- */
-bool GL_Init()
-{
-    static bool loaded = false;
-
-    if (loaded)
-        return true;
-
-    if (gl3wInit() != 0)
-    {
-        /* Failed to gl3wInit() */
-        return false;
-    }
-
-    if (!gl3wIsSupported(3, 0))
-    {
-        /* OpenGL 3.0 is not supported */
-        return false;
-    }
-
-    glEnable(GL_SCISSOR_TEST);
-    glActiveTexture(GL_TEXTURE0);
-    glEnable(GL_BLEND);
-    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
-    return loaded = true;
-}
-
-/**
- * Resize the OpenGL viewport.
- *
- * @param[in] width Width of the new viewport.
- * @param[in] height Height of the new viewport.
- */
-void GL_Resize(int width, int height)
-{
-    glViewport(0, 0, width, height);
-}
diff --git a/src/gui/GL.h b/src/gui/GL.h
deleted file mode 100644
index 2093334..0000000
--- a/src/gui/GL.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef JES_GL_H
-#define JES_GL_H
-
-bool GL_Init();
-void GL_Resize(int width, int height);
-
-#endif