mm-video-v4l2: vidc: venc: Remove sys prop for low power mode

Remove setprop for encoder low power mode. If clients want high
quality mode, set_config on OMX_QcomIndexConfigVideoVencPerfMode
needs to be called.

CRs-Fixed: 1052527
Change-Id: I2ac693e6fcf809bf16aeff5f9b25a873ed373a37
2 files changed