drm/amd/display: Conversion to bool not necessary

A logical evaluation already results in bool. There is no need for using
a ternary operator based evaluation and bool conversion of the outcome.
Issue identified using boolconv.cocci Coccinelle semantic patch.
This was also reported by the Kernel Test Robot. Hence

Fixes: 473683a0 ("drm/amd/display: Create a file dedicated for CRTC")
Reported-by: Nkernel test robot <lkp@intel.com>
Signed-off-by: NDeepak R Varma <drv@mailo.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c

@@ -105,8 +105,7 @@ static void vblank_control_worker(struct work_struct *work)
 	else if (dm->active_vblank_irq_count)
 		dm->active_vblank_irq_count--;
 
-	dc_allow_idle_optimizations(
-		dm->dc, dm->active_vblank_irq_count == 0 ? true : false);
+	dc_allow_idle_optimizations(dm->dc, dm->active_vblank_irq_count == 0);
 
 	DRM_DEBUG_KMS("Allow idle optimizations (MALL): %d\n", dm->active_vblank_irq_count == 0);