drm: remove unneeded break

A break is not needed if it is preceded by a return or break

Signed-off-by: Tom Rix <[e-mail]>
Acked-by: Sam Ravnborg <[e-mail]>
Signed-off-by: Sam Ravnborg <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/mgag200/mgag200_mode.c

···
 	case G200_SE_A:
 	case G200_SE_B:
 		return mga_g200se_set_plls(mdev, clock);
-		break;
 	case G200_WB:
 	case G200_EW3:
 		return mga_g200wb_set_plls(mdev, clock);
-		break;
 	case G200_EV:
 		return mga_g200ev_set_plls(mdev, clock);
-		break;
 	case G200_EH:
 	case G200_EH3:
 		return mga_g200eh_set_plls(mdev, clock);
-		break;
 	case G200_ER:
 		return mga_g200er_set_plls(mdev, clock);
-		break;
 	}
 
 	misc = RREG8(MGA_MISC_IN);

drivers/gpu/drm/nouveau/nvkm/subdev/bios/pll.c

···
 	case NV_20:
 	case NV_30:
 		return nv04_pll_mapping;
-		break;
 	case NV_40:
 		return nv40_pll_mapping;
 	case NV_50:

drivers/gpu/drm/nouveau/nvkm/subdev/clk/mcp77.c

···
 		break;
 	case nv_clk_src_mem:
 		return 0;
-		break;
 	case nv_clk_src_vdec:
 		P = (read_div(clk) & 0x00000700) >> 8;
 
 		switch (mast & 0x00400000) {
 		case 0x00400000:
 			return nvkm_clk_read(&clk->base, nv_clk_src_core) >> P;
-			break;
 		default:
 			return 500000 >> P;
-			break;
 		}
 		break;
 	default:

drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c

···
 		break;
 	default:
 		return -ENOSYS;
-		break;
 	}
 
 	T(WR) = ((timing[1] >> 24) & 0xff) - 1 - T(CWL);

drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c

···
 		case 0x00000010: B_(NVDEC ); break;
 		case 0x00000013: B_(CE    ); break;
 		case 0x00000014: C_(GSP   ); break;
-			break;
 		default:
 			break;
 		}

drivers/gpu/drm/qxl/qxl_ioctl.c

···
 	default:
 		DRM_DEBUG("Only draw commands in execbuffers\n");
 		return -EINVAL;
-		break;
 	}
 
 	if (cmd->command_size > PAGE_SIZE - sizeof(union qxl_release_info))