Remove some textures that had both DDS and PNG variants.

Use @wackyserious new textures for those.
Fixes #6738
Reported by: @sera
This was SVN commit r27540.

binaries/data/mods/public/art/actors/props/units/heads/head_pers_a.xml

@@ -5,55 +5,55 @@
     <variant frequency="2" name="face-beard-small-a">
       <mesh>props/head_beard_small.dae</mesh>
       <textures>
-        <texture file="props/head/pers_face_a.dds" name="baseTex"/>
+        <texture file="props/head/pers_face_a.png" name="baseTex"/>
       </textures>
     </variant>
     <variant frequency="2" name="face-beard-small-b">
       <mesh>props/head_beard_small.dae</mesh>
       <textures>
-        <texture file="props/head/pers_face_b.dds" name="baseTex"/>
+        <texture file="props/head/pers_face_b.png" name="baseTex"/>
       </textures>
     </variant>
     <variant frequency="3" name="face-beard-large-a">
       <mesh>props/head_beard_large.dae</mesh>
       <textures>
-        <texture file="props/head/pers_face_a.dds" name="baseTex"/>
+        <texture file="props/head/pers_face_a.png" name="baseTex"/>
       </textures>
     </variant>
     <variant frequency="3" name="face-beard-large-b">
       <mesh>props/head_beard_large.dae</mesh>
       <textures>
-        <texture file="props/head/pers_face_b.dds" name="baseTex"/>
+        <texture file="props/head/pers_face_b.png" name="baseTex"/>
       </textures>
     </variant>
     <variant frequency="1" name="face-beard-wide-a">
       <mesh>props/head_beard_wide.dae</mesh>
       <textures>
-        <texture file="props/head/pers_face_a.dds" name="baseTex"/>
+        <texture file="props/head/pers_face_a.png" name="baseTex"/>
       </textures>
     </variant>
     <variant frequency="1" name="face-beard-wide-b">
       <mesh>props/head_beard_wide.dae</mesh>
       <textures>
-        <texture file="props/head/pers_face_b.dds" name="baseTex"/>
+        <texture file="props/head/pers_face_b.png" name="baseTex"/>
       </textures>
     </variant>
     <variant frequency="1" name="face-scrubby-i">
       <mesh>props/dude_head.dae</mesh>
       <textures>
-        <texture file="props/head/pers_face_i.dds" name="baseTex"/>
+        <texture file="props/head/pers_face_i.png" name="baseTex"/>
       </textures>
     </variant>
     <variant frequency="2" name="face-beard-large-j">
       <mesh>props/head_beard_large.dae</mesh>
       <textures>
-        <texture file="props/head/pers_face_j.dds" name="baseTex"/>
+        <texture file="props/head/pers_face_j.png" name="baseTex"/>
       </textures>
     </variant>
     <variant frequency="1" name="face-beard-small-j">
       <mesh>props/head_beard_small.dae</mesh>
       <textures>
-        <texture file="props/head/pers_face_j.dds" name="baseTex"/>
+        <texture file="props/head/pers_face_j.png" name="baseTex"/>
       </textures>
     </variant>
   </group>

binaries/data/mods/public/art/actors/props/units/heads/head_pers_b.xml

@@ -9,17 +9,17 @@
   <group>
     <variant frequency="1" name="Persian Face a">
       <textures>
-        <texture file="props/head/pers_face_a.dds" name="baseTex"/>
+        <texture file="props/head/pers_face_a.png" name="baseTex"/>
       </textures>
     </variant>
     <variant frequency="1" name="Persian Face b">
       <textures>
-        <texture file="props/head/pers_face_b.dds" name="baseTex"/>
+        <texture file="props/head/pers_face_b.png" name="baseTex"/>
       </textures>
     </variant>
     <variant frequency="1" name="Persian Face i">
       <textures>
-        <texture file="props/head/pers_face_i.dds" name="baseTex"/>
+        <texture file="props/head/pers_face_i.png" name="baseTex"/>
       </textures>
     </variant>
   </group>

binaries/data/mods/public/art/actors/props/units/heads/pers_hair.xml

@@ -5,7 +5,7 @@
     <variant>
       <mesh>props/helmet/pers_hair.dae</mesh>
       <textures>
-        <texture file="props/head/pers_face_a.dds" name="baseTex"/>
+        <texture file="props/head/pers_face_a.png" name="baseTex"/>
         <texture file="default_norm.png" name="normTex"/>
         <texture file="null_black.dds" name="specTex"/>
       </textures>