Update mpv config

config/mpv/shaders/filmgrain.hook

@@ -1,40 +0,0 @@
-//!HOOK LUMA
-//!BIND HOOKED
-//!DESC gaussian film grain
-
-#define INTENSITY 0.05
-
-float permute(float x)
-{
-    x = (34.0 * x + 1.0) * x;
-    return fract(x * 1.0/289.0) * 289.0;
-}
-
-float rand(inout float state)
-{
-    state = permute(state);
-    return fract(state * 1.0/41.0);
-}
-
-vec4 hook()
-{
-    vec3 m = vec3(HOOKED_pos, random) + vec3(1.0);
-    float state = permute(permute(m.x) + m.y) + m.z;
-
-    const float a0 = 0.151015505647689;
-    const float a1 = -0.5303572634357367;
-    const float a2 = 1.365020122861334;
-    const float b0 = 0.132089632343748;
-    const float b1 = -0.7607324991323768;
-
-    float p = 0.95 * rand(state) + 0.025;
-    float q = p - 0.5;
-    float r = q * q;
-
-    float grain = q * (a2 + (a1 * r + a0) / (r*r + b1*r + b0));
-    grain *= 0.255121822830526; // normalize to [-1,1)
-
-    vec4 color = HOOKED_tex(HOOKED_pos);
-    color.rgb += vec3(INTENSITY * grain);
-    return color;
-}