drm/amd/display/dc/dce110/dce110_compressor: Remove unused function...

drm/amd/display/dc/dce110/dce110_compressor: Remove unused function 'dce110_get_required_compressed_surfacesize

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/amd/amdgpu/../display/dc/dce110/dce110_compressor.c:415:6: warning: no previous prototype for ‘dce110_get_required_compressed_surfacesize’ [-Wmissing-prototypes]

Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c

@@ -412,36 +412,6 @@ void dce110_compressor_destroy(struct compressor **compressor)
 	*compressor = NULL;
 }
 
-bool dce110_get_required_compressed_surfacesize(struct fbc_input_info fbc_input_info,
-						struct fbc_requested_compressed_size size)
-{
-	bool result = false;
-
-	unsigned int max_x = FBC_MAX_X, max_y = FBC_MAX_Y;
-
-	get_max_support_fbc_buffersize(&max_x, &max_y);
-
-	if (fbc_input_info.dynamic_fbc_buffer_alloc == 0) {
-		/*
-		 * For DCE11 here use Max HW supported size:  HW Support up to 3840x2400 resolution
-		 * or 18000 chunks.
-		 */
-		size.preferred_size = size.min_size = align_to_chunks_number_per_line(max_x) * max_y * 4;  /* (For FBC when LPT not supported). */
-		size.preferred_size_alignment = size.min_size_alignment = 0x100;       /* For FBC when LPT not supported */
-		size.bits.preferred_must_be_framebuffer_pool = 1;
-		size.bits.min_must_be_framebuffer_pool = 1;
-
-		result = true;
-	}
-	/*
-	 * Maybe to add registry key support with optional size here to override above
-	 * for debugging purposes
-	 */
-
-	return result;
-}
-
-
 void get_max_support_fbc_buffersize(unsigned int *max_x, unsigned int *max_y)
 {
 	*max_x = FBC_MAX_X;