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

valve/pbr/models/aflock.mdl/aflock.mat

@@ -0,0 +1,32 @@
+
+{
+"for" "#models/aflock/flockbot.mdl"
+//"basecolor_map" "flockbot.png"
+//"normal_map" "flockbot_normal.png"
+//"metal_map" "flockbot_metal.png"
+//"roughness_map" "flockbot_roughness.png"
+}
+
+{
+"for" "#models/aflock/flockeyes.mdl"
+//"basecolor_map" "flockeyes.png"
+//"normal_map" "flockeyes_normal.png"
+//"metal_map" "flockeyes_metal.png"
+//"roughness_map" "flockeyes_roughness.png"
+}
+
+{
+"for" "#models/aflock/flockface.mdl"
+//"basecolor_map" "flockface.png"
+//"normal_map" "flockface_normal.png"
+//"metal_map" "flockface_metal.png"
+//"roughness_map" "flockface_roughness.png"
+}
+
+{
+"for" "#models/aflock/flocktop.mdl"
+//"basecolor_map" "flocktop.png"
+//"normal_map" "flocktop_normal.png"
+//"metal_map" "flocktop_metal.png"
+//"roughness_map" "flocktop_roughness.png"
+}