Removing calculateLocalInertia from static shapes.
Removing calculateLocalInertia from static shapes.

Bullet does not handle calculateLocalInertia for static shapes, like
the static triangle mesh, so adding a check for that before calling
the function.

Tested on Linux and OSX.

Change-Id: Ib84454ee4e1c7fac20a94e002f244baba58c61cf

google/corgi,google/corgi