gpu: drop access flags and format from driver.Device.BindImageTexture

They can be deferred in the drivers that need them.

Signed-off-by: Elias Naur <mail@eliasnaur.com>

gpu/internal/driver/driver.go

@@ -42,7 +42,7 @@ type Device interface {
 	BindTexture(unit int, t Texture)
 	BindVertexBuffer(b Buffer, offset int)
 	BindIndexBuffer(b Buffer)
-	BindImageTexture(unit int, texture Texture, access AccessBits, format TextureFormat)
+	BindImageTexture(unit int, texture Texture)
 	BindUniforms(buf Buffer)
 	BindStorageBuffer(binding int, buf Buffer)
 
@@ -91,8 +91,6 @@ type BlendDesc struct {
 	SrcFactor, DstFactor BlendFactor
 }
 
-type AccessBits uint8
-
 type BlendFactor uint8
 
 type Topology uint8
@@ -164,11 +162,6 @@ const (
 	TextureFormatOutput
 )
 
-const (
-	AccessRead AccessBits = 1 << iota
-	AccessWrite
-)
-
 const (
 	FilterNearest TextureFilter = iota
 	FilterLinear