Remove povray

Povray has nothing to do with LaTeX. It was moved to another repository:
https://github.com/MartinThoma/visualizations

povray/ellipsoid/Makefile

@@ -1,15 +0,0 @@
-SOURCE = ellipsoid
-DELAY = 80
-DENSITY = 300
-HEIGHT = 600
-WIDTH = 800
-
-make:
-	povray $(SOURCE).pov Width=$(WIDTH) HEIGHT=$(HEIGHT) +O$(SOURCE).png +Q9 +A
-	make clean
-
-clean:
-	rm -rf  $(TARGET) *.class *.html *.log *.aux *.data *.gnuplot
-
-png:
-	make

povray/ellipsoid/ellipsoid.pov

@@ -1,115 +0,0 @@
-#version 3.5;
-#include "colors.inc"
-#include "glass.inc" 
-
-camera {
-  location <14, 8, 0>
-  look_at <0, 0, 0>
-}
-
-plane {
-  y, -4
-  pigment { checker color Gray color White  }
-}
-
-sphere {
-  <0, 0, 0>, // center of the spehre
-  4          // radius
-  scale<1,1,1.4> 
-  material { M_Glass }
-  photons {  // photon block for an object
-    target 1.0
-    refraction on
-    reflection on
-  }
-  finish {
-    reflection 0.2 // glass reflects a bit
-    phong 0.9 phong_size 40 // a highlight
-  }
-}
-
-#declare Axis_texture = //
-pigment {
-  gradient <1,0,0>
-  color_map {[0.0 color <1,1,1>]
-    [0.5 color <1,1,1>]
-    [0.5 color <1,0,0>] 
-    [1.0 color <1,0,0>]
-  }
-    scale 2 
-}
-
-
-#declare Diameter = 0.1;
-#declare LengthX = 5;
-#declare LengthY = 8;
-#declare LengthZ = 5;
-#declare axisY = //
-union {
-  cylinder { 
-    <0, 0, 0>, <LengthY, 0, 0>, Diameter
-  }
-  cone { <LengthY, 0, 0>, Diameter * 2, <LengthY + Diameter * 5 , 0, 0>, 0 }
-  texture { Axis_texture}
-  finish {ambient 0.1 diffuse 0.9 phong 1}
-}
-#declare axis = //
-union {
-  cylinder { 
-    <0, 0, 0>, <LengthX, 0, 0>, Diameter
-  }
-  cone { <LengthX, 0, 0>, Diameter * 2, <LengthX + Diameter * 5 , 0, 0>, 0 }
-  texture { Axis_texture}
-  finish {ambient 0.1 diffuse 0.9 phong 1}
-}
-
-declare XYZ_axis = //
-union {
-  text {
-    ttf "crystal.ttf",
-    "0",
-    .1,
-    0 scale 0.5 
-    pigment{color<1,1,0>}
-  }
-  union {
-    object {axis}
-    text {
-        ttf "crystal.ttf",
-        "X",
-        .1,
-        0 scale 0.5 
-        pigment{color<1,1,0> }
-        translate <LengthX, Diameter*2,Diameter*2>
-    }
-  }
-  union {
-    object {axisY}
-    text {
-        ttf "crystal.ttf",
-        "Y",
-        .1,
-        0 scale 0.5
-        pigment{color<1,1,0>}
-        translate <LengthY, Diameter*2,Diameter*2>
-    }
-    rotate <0,90,0>
-  }
-  union {
-    object {axis }
-    text {  ttf   "crystal.ttf",  "Z",  .1,   0
-    rotate <0,0,-90>
-    scale 0.5 
-    pigment{color<1,1,0>}
-    translate <LengthZ,Diameter*2,Diameter*2> 
-    }
-    rotate <0,0,90>
-  }
-}
-
-object {XYZ_axis}
-
-// this should surround the elipsoid: box {<-1, -1, -1> < 1, 1, 1>}
-
-light_source { <5, 10, 10> color White }
-light_source { <10, 10, 5> color White }

povray/ellipsoid/glass.inc

@@ -1,23 +0,0 @@
-#declare M_Glass=    // Glass material
-material {
-  texture {
-    pigment {rgbt 1}
-    finish {
-      ambient 0.0
-      diffuse 0.05
-      specular 0.6
-      roughness 0.005
-      reflection {
-        0.1, 1.0
-        fresnel on
-      }
-      conserve_energy
-    }
-  }
-  interior {
-    ior 1.5 // Glass refraction
-    fade_power 1000
-    fade_distance 0.9
-    fade_color <0.1,0.1,0.9>
-  }
-}