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

bshift/pbr/models/w_longjump.mdl/w_longjump.mat

@@ -0,0 +1,40 @@
+
+{
+"for" "#models/w_longjump/back.mdl"
+//"basecolor_map" "back.png"
+//"normal_map" "back_normal.png"
+//"metal_map" "back_metal.png"
+//"roughness_map" "back_roughness.png"
+}
+
+{
+"for" "#models/w_longjump/backpackfront.mdl"
+//"basecolor_map" "backpackfront.png"
+//"normal_map" "backpackfront_normal.png"
+//"metal_map" "backpackfront_metal.png"
+//"roughness_map" "backpackfront_roughness.png"
+}
+
+{
+"for" "#models/w_longjump/black_chrome.mdl"
+//"basecolor_map" "black_chrome.png"
+//"normal_map" "black_chrome_normal.png"
+//"metal_map" "black_chrome_metal.png"
+//"roughness_map" "black_chrome_roughness.png"
+}
+
+{
+"for" "#models/w_longjump/filler.mdl"
+//"basecolor_map" "filler.png"
+//"normal_map" "filler_normal.png"
+//"metal_map" "filler_metal.png"
+//"roughness_map" "filler_roughness.png"
+}
+
+{
+"for" "#models/w_longjump/jets.mdl"
+//"basecolor_map" "jets.png"
+//"normal_map" "jets_normal.png"
+//"metal_map" "jets_metal.png"
+//"roughness_map" "jets_roughness.png"
+}