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

gearbox/pbr/models/intro_regular.mdl/intro_regular.mat

@@ -0,0 +1,40 @@
+
+{
+"for" "#models/intro_regular/boots.mdl"
+//"basecolor_map" "boots.png"
+//"normal_map" "boots_normal.png"
+//"metal_map" "boots_metal.png"
+//"roughness_map" "boots_roughness.png"
+}
+
+{
+"for" "#models/intro_regular/fatigues.mdl"
+//"basecolor_map" "fatigues.png"
+//"normal_map" "fatigues_normal.png"
+//"metal_map" "fatigues_metal.png"
+//"roughness_map" "fatigues_roughness.png"
+}
+
+{
+"for" "#models/intro_regular/grunt_MP5.mdl"
+//"basecolor_map" "grunt_MP5.png"
+//"normal_map" "grunt_MP5_normal.png"
+//"metal_map" "grunt_MP5_metal.png"
+//"roughness_map" "grunt_MP5_roughness.png"
+}
+
+{
+"for" "#models/intro_regular/grunt_reg_torso.mdl"
+//"basecolor_map" "grunt_reg_torso.png"
+//"normal_map" "grunt_reg_torso_normal.png"
+//"metal_map" "grunt_reg_torso_metal.png"
+//"roughness_map" "grunt_reg_torso_roughness.png"
+}
+
+{
+"for" "#models/intro_regular/old_saw_head.mdl"
+//"basecolor_map" "old_saw_head.png"
+//"normal_map" "old_saw_head_normal.png"
+//"metal_map" "old_saw_head_metal.png"
+//"roughness_map" "old_saw_head_roughness.png"
+}