After the previous commit, cff_glyph_load is no longer called
without first checking for valid size and glyph objects in
FT_Glyph_Load and these checks can be removed downstream.
* src/cff/cffdrivr.c (cff_glyph_load): Remove `size` and `glyph` checks.
* src/cff/cffgload.c (cff_slot_load): Ditto.