Remove 3D models from SMD HC49 crystals (inexistent)
Remove inexistent models. Not found in https://github.com/KiCad/kicad-packages3D/tree/master/Crystal.3dshapes
Edited by Joel Guittet
Remove inexistent models. Not found in https://github.com/KiCad/kicad-packages3D/tree/master/Crystal.3dshapes