magnum: no_create() constructors are useless, don't add them.

doc/python/magnum.gl.rst

@@ -23,8 +23,26 @@
     DEALINGS IN THE SOFTWARE.
 ..
 
+.. py:module:: magnum.gl
+
+    TODO: remove this once m.css stops ignoring the first caption on a page
+    #######################################################################
+
+    `NoCreate constructors`_
+    ========================
+
+    .. TODO: link to NoCreate once m.dox handles variables properly
+
+    Compared to C++, the Python APIs don't have an alternative to the
+    :dox:`NoCreate <NoCreateT>` constructor tag. In C++ these make it possible
+    to have class members initialized before a GL context is present, but in
+    Python there's no such limitation so these don't make sense.
+
 .. py:class:: magnum.gl.Mesh
 
+    TODO: remove this once m.css stops ignoring the first caption on a page
+    #######################################################################
+
     `Buffer ownership and reference counting`_
     ==========================================
 

src/python/magnum/gl.cpp

@@ -187,11 +187,6 @@ void gl(py::module& m) {
 
         abstractShaderProgram
             /** @todo limit queries */
-
-            /* Constructors */
-            .def_static("no_create", []() {
-                return PyAbstractShaderProgram{NoCreate};
-            }, "Construct without creating the underlying OpenGL object")
             .def(py::init(), "Constructor")
 
             /* Public interface */