remove combined {models,sprites}.mat, remove extra .mdl .spr exts

bshift/pbr/models/w_suit.mdl/w_suit.mat

@@ -0,0 +1,24 @@
+
+{
+"for" "#models/w_suit/back.mdl"
+//"basecolor_map" "back.png"
+//"normal_map" "back_normal.png"
+//"metal_map" "back_metal.png"
+//"roughness_map" "back_roughness.png"
+}
+
+{
+"for" "#models/w_suit/front.mdl"
+//"basecolor_map" "front.png"
+//"normal_map" "front_normal.png"
+//"metal_map" "front_metal.png"
+//"roughness_map" "front_roughness.png"
+}
+
+{
+"for" "#models/w_suit/PLAYER_Chrome1.mdl"
+//"basecolor_map" "PLAYER_Chrome1.png"
+//"normal_map" "PLAYER_Chrome1_normal.png"
+//"metal_map" "PLAYER_Chrome1_metal.png"
+//"roughness_map" "PLAYER_Chrome1_roughness.png"
+}