kmsdrm: fix gbm surface dimensions not matching the mode being set commit 2067a7db8e4a36ba40ab34a55b3166ca28638a60 introduced new surface_w and surface_h variables which were passed to gbm_surface_create rather than the dimensions from the drmModeModeInfo structure. commit 5105ecf8b1b37ab4e4b8344550c90dd69f49909e further refactored this code and no longer synchronized these variables inside KMSDRM_SetDisplayMode, breaking it this change removes the variables since they're seemingly redundant to begin with