chore: remove 399 bios/ files now sourced from buildbot

Files verified by MD5 to be identical to their buildbot-fetched
copies in data/. resolve_local_file data directory fallback ensures
they remain resolvable for verify and pack generation.

bios/Sony/PlayStation Portable/shaders/naturalA.fsh

@@ -1,36 +0,0 @@
-// Natural Vision Shader, modified to use in PPSSPP.
-
-// by ShadX (Modded by SimoneT)
-// http://forums.ngemu.com/showthread.php?t=76098
-
-#ifdef GL_ES
-precision mediump float;
-precision mediump int;
-#endif
-
-uniform sampler2D sampler0;
-varying vec2 v_texcoord0;
-
-const mat3 RGBtoYIQ = mat3(0.299, 0.596, 0.212, 
-                           0.587,-0.275,-0.523, 
-                           0.114,-0.321, 0.311);
-
-const mat3 YIQtoRGB = mat3(1.0, 1.0, 1.0,
-                           0.95568806036115671171,-0.27158179694405859326,-1.1081773266826619523,
-                           0.61985809445637075388,-0.64687381613840131330, 1.7050645599191817149);
-
-const vec3 val00 = vec3( 1.2, 1.2, 1.2);
-
-void main()
-{
-vec3 c0,c1;
-
-c0 = texture2D(sampler0,v_texcoord0).xyz;
-
-c1=RGBtoYIQ*c0;
-
-c1=vec3(pow(c1.x,val00.x),c1.yz*val00.yz);
-
-gl_FragColor.rgb=YIQtoRGB*c1;
-gl_FragColor.a = 1.0;
-}

bios/Sony/PlayStation Portable/shaders/upscale_bicubic.fsh

@@ -1,76 +0,0 @@
-// Bicubic upscaling shader.
-// Implements Mitchell-Netravali class filters (aka BC-splines), see:
-// https://en.wikipedia.org/wiki/Mitchell%E2%80%93Netravali_filters .
-
-#ifdef GL_ES
-precision mediump float;
-precision mediump int;
-#endif
-
-uniform sampler2D sampler0;
-varying vec2 v_position;
-
-uniform vec2 u_texelDelta;
-uniform vec2 u_pixelDelta;
-
-uniform vec4 u_setting;
-// Shader parameters (somewhat poorly named):
-//   u_setting.x - Sharpness
-//   u_setting.y - Anisotropy
-// from which filter coefficients are computed as
-//   B = 1 - Sharpness + 0.5*Anisotropy
-//   C = 0.5 * Sharpness + Anisotropy
-
-// Note: some popular filters are
-//   B-spline                 - B=1, C=0   <=> Sharpness=0,   Anisotropy=0
-//   'The' Mitchell-Netravali - B=C=1/3    <=> Sharpness=2/3, Anisotropy=0
-//   Catmull-Rom              - B=0, C=1/2 <=> Sharpness=1,   Anisotropy=0
-
-const vec2 HALF_PIXEL = vec2(0.5, 0.5);
-
-vec3 rgb(int inputX, int inputY) {
-	return texture2D(sampler0, (vec2(inputX, inputY) + HALF_PIXEL) * u_texelDelta).xyz;
-}
-
-vec4 getWeights(mat4 W, float t) {
-	return W * vec4(1.0, t, t*t, t*t*t);
-}
-
-vec3 filterX(ivec2 inputPosFloor, int dy, vec4 w) {
-	return
-		w.x * rgb(inputPosFloor.x - 1, inputPosFloor.y + dy) +
-		w.y * rgb(inputPosFloor.x    , inputPosFloor.y + dy) +
-		w.z * rgb(inputPosFloor.x + 1, inputPosFloor.y + dy) +
-		w.w * rgb(inputPosFloor.x + 2, inputPosFloor.y + dy);
-}
-
-vec4 filterBC(vec2 outputPos, float B, float C) {
-	vec2 inputPos = outputPos / u_texelDelta - HALF_PIXEL;
-	ivec2 inputPosFloor = ivec2(inputPos);
-	float x = inputPos.x - float(inputPosFloor.x);
-	float y = inputPos.y - float(inputPosFloor.y);
-	const float r6 = 0.166666666, r3 = 0.333333333; // Precomputed 1/6 and 1/3.
-	// Matrix for computing weights.
-	// NOTE: column-major.
-	mat4 W = mat4(
-		B*r6       , 1.0-B*r3    , B*r6            , 0.0   ,
-		-C-0.5*B   , 0.0         , C+0.5*B         , 0.0   ,
-		2.0*C+0.5*B, C+2.0*B-3.0 , -2.0*C-2.5*B+3.0, -C    ,
-		-C-B*r6    , -C-1.5*B+2.0, C+1.5*B-2.0     , C+B*r6);
-	vec4 Wx = getWeights(W, x);
-	vec4 Wy = getWeights(W, y);
-
-	vec3 ret =
-		Wy.x * filterX(inputPosFloor, -1, Wx) +
-		Wy.y * filterX(inputPosFloor,  0, Wx) +
-		Wy.z * filterX(inputPosFloor, +1, Wx) +
-		Wy.w * filterX(inputPosFloor, +2, Wx);
-	return vec4(ret, 1.0);
-}
-
-void main() {
-	gl_FragColor.rgba = filterBC(
-		v_position,
-		dot(u_setting.xy, vec2(-1.0, 0.5)) + 1.0,
-		dot(u_setting.xy, vec2(0.5, +1.0)));
-}

bios/Sony/PlayStation Portable/shaders/upscale_bicubic.vsh

@@ -1,11 +0,0 @@
-attribute vec4 a_position;
-attribute vec2 a_texcoord0;
-
-varying vec2 v_position;
-
-void main()
-{
-  gl_Position = a_position;
-      
-  v_position = a_texcoord0;
-}