Revert "fix sun specular being turned off for DH water"

This reverts commit e7401e9d95.

shaders/dimensions/DH_translucent.fsh

@@ -4,9 +4,6 @@
 #include "/lib/color_transforms.glsl"
 #include "/lib/projections.glsl"
 
-#ifdef OVERWORLD_SHADER
-#define WATER_SUN_SPECULAR
-#endif
 uniform vec2 texelSize;
 // uniform int moonPhase;
 uniform float frameTimeCounter;