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

cstrike/pbr/models/player/leet.mdl/leet.mat

@@ -0,0 +1,24 @@
+
+{
+"for" "#models/leet/Arab_dmbase1.mdl"
+//"basecolor_map" "Arab_dmbase1.png"
+//"normal_map" "Arab_dmbase1_normal.png"
+//"metal_map" "Arab_dmbase1_metal.png"
+//"roughness_map" "Arab_dmbase1_roughness.png"
+}
+
+{
+"for" "#models/leet/Backpack1.mdl"
+//"basecolor_map" "Backpack1.png"
+//"normal_map" "Backpack1_normal.png"
+//"metal_map" "Backpack1_metal.png"
+//"roughness_map" "Backpack1_roughness.png"
+}
+
+{
+"for" "#models/leet/Chrome3.mdl"
+//"basecolor_map" "Chrome3.png"
+//"normal_map" "Chrome3_normal.png"
+//"metal_map" "Chrome3_metal.png"
+//"roughness_map" "Chrome3_roughness.png"
+}