fix: grid material error (#342)

Author: cptbtptpbcptdtptp

packages/custom-material/src/grid/GridMaterial.ts

@@ -126,7 +126,6 @@ attribute vec4 POSITION_FLIP;
 
 uniform mat4 camera_ViewInvMat;
 uniform mat4 camera_ProjMat;
-uniform vec4 camera_ProjectionParams;
 
 varying vec3 nearPoint;
 varying vec3 farPoint;