[skip ci] cuttlefish: Set default HW composer to drm_hwcomposer

Change the default hardware composer from Ranchu to drm-hwcomposer. Bug: 358098266 Bug: 377306698 Test: CQ Test: Woodchipper (see b/377306698) Change-Id: Ided40f7deeeb28f8ebdfc71d7f2aa37aa3712d68 GitOrigin-RevId: 8e9febd

Author: timvpGoogle

staging/host/commands/assemble_cvd/flags.cc

@@ -1685,12 +1685,10 @@ Result<CuttlefishConfig> InitializeCuttlefishConfiguration(
  }
 
  if (hwcomposer_vec[instance_index] == kHwComposerAuto) {
- if (gpu_mode == kGpuModeDrmVirgl) {
- instance.set_hwcomposer(kHwComposerDrm);
- } else if (gpu_mode == kGpuModeNone) {
+ if (gpu_mode == kGpuModeNone) {
  instance.set_hwcomposer(kHwComposerNone);
  } else {
- instance.set_hwcomposer(kHwComposerRanchu);
+ instance.set_hwcomposer(kHwComposerDrm);
  }
  }