Remove mjData.qM

PiperOrigin-RevId: 942520660
Change-Id: I422358e299ca0fcfe4c49cd0ee90c014a4c319d7

python/mujoco/introspect/structs.py

@@ -6115,20 +6115,12 @@ STRUCTS: Mapping[str, StructDecl] = dict([
                  doc='com-based composite inertia and mass',
                  array_extent=('nbody', 10),
              ),
-             StructFieldDecl(
-                 name='qM',
-                 type=PointerType(
-                     inner_type=ValueType(name='mjtNum'),
-                 ),
-                 doc='inertia (sparse)',
-                 array_extent=('nM',),
-             ),
              StructFieldDecl(
                  name='M',
                  type=PointerType(
                      inner_type=ValueType(name='mjtNum'),
                  ),
-                 doc='reduced inertia (compressed sparse row)',
+                 doc='inertia (sparse)',
                  array_extent=('nC',),
              ),
              StructFieldDecl(
@@ -6328,7 +6320,7 @@ STRUCTS: Mapping[str, StructDecl] = dict([
                  type=PointerType(
                      inner_type=ValueType(name='mjtNum'),
                  ),
-                 doc='sparse LU of (qM - dt*qDeriv)',
+                 doc='sparse LU of (M - dt*qDeriv)',
                  array_extent=('nD',),
              ),
              StructFieldDecl(