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

cstrike/pbr/models/p_shield.mdl/p_shield.mat

@@ -0,0 +1,32 @@
+
+{
+"for" "#models/p_shield/fiveseven.mdl"
+//"basecolor_map" "fiveseven.png"
+//"normal_map" "fiveseven_normal.png"
+//"metal_map" "fiveseven_metal.png"
+//"roughness_map" "fiveseven_roughness.png"
+}
+
+{
+"for" "#models/p_shield/shield_back.mdl"
+//"basecolor_map" "shield_back.png"
+//"normal_map" "shield_back_normal.png"
+//"metal_map" "shield_back_metal.png"
+//"roughness_map" "shield_back_roughness.png"
+}
+
+{
+"for" "#models/p_shield/shield_front.mdl"
+//"basecolor_map" "shield_front.png"
+//"normal_map" "shield_front_normal.png"
+//"metal_map" "shield_front_metal.png"
+//"roughness_map" "shield_front_roughness.png"
+}
+
+{
+"for" "#models/p_shield/shield_glass.mdl"
+//"basecolor_map" "shield_glass.png"
+//"normal_map" "shield_glass_normal.png"
+//"metal_map" "shield_glass_metal.png"
+//"roughness_map" "shield_glass_roughness.png"
+}