Remove pointless comments

src/glx_context.c

@@ -228,8 +228,6 @@ static GLFWglproc getProcAddressGLX(const char* procname)
         return _glfw_dlsym(_glfw.glx.handle, procname);
 }
 
-// Destroy the OpenGL context
-//
 static void destroyContextGLX(_GLFWwindow* window)
 {
     if (window->context.glx.window)

src/nsgl_context.m

@@ -119,8 +119,6 @@ static GLFWglproc getProcAddressNSGL(const char* procname)
     return symbol;
 }
 
-// Destroy the OpenGL context
-//
 static void destroyContextNSGL(_GLFWwindow* window)
 {
     @autoreleasepool {

src/wgl_context.c

@@ -389,8 +389,6 @@ static GLFWglproc getProcAddressWGL(const char* procname)
     return (GLFWglproc) GetProcAddress(_glfw.wgl.instance, procname);
 }
 
-// Destroy the OpenGL context
-//
 static void destroyContextWGL(_GLFWwindow* window)
 {
     if (window->context.wgl.handle)