opencv: improve reproducibility
opencv: improve reproducibility

Remove the build host info to improve reproducibility, otherwise there
comes below detailed build host info when run below command on target.
  # python3 /usr/share/opencv4/samples/python/opencv_version.py --build
[snip]
  Extra modules:
    Location (extra):            /buildarea1/master-wr/build/User/customized_next/build/tmp/work/corei7-64-wrs-linux/opencv/4.3.0-r0/contrib/modules
[snip]

Signed-off-by: Mingli Yu <0cde210d53ea437aa8fca279c2e91236080d61a9@windriver.com>
Signed-off-by: Khem Raj <729d64b6f67515e258459a5f6d20ec88b2caf8df@gmail.com>

moto-timo/meta-openembedded,schnitzeltony/meta-openembedded,openembedded/meta-openembedded,rehsack/meta-openembedded,rehsack/meta-openembedded,schnitzeltony/meta-openembedded,rehsack/meta-openembedded,VCTLabs/meta-openembedded,schnitzeltony/meta-openembedded,openembedded/meta-openembedded,schnitzeltony/meta-openembedded,rehsack/meta-openembedded,rehsack/meta-openembedded,openembedded/meta-openembedded,moto-timo/meta-openembedded,openembedded/meta-openembedded,VCTLabs/meta-openembedded,VCTLabs/meta-openembedded,openembedded/meta-openembedded,VCTLabs/meta-openembedded,rehsack/meta-openembedded,rehsack/meta-openembedded,openembedded/meta-openembedded,schnitzeltony/meta-openembedded,VCTLabs/meta-openembedded,openembedded/meta-openembedded,VCTLabs/meta-openembedded,VCTLabs/meta-openembedded,VCTLabs/meta-openembedded,moto-timo/meta-openembedded,schnitzeltony/meta-openembedded,moto-timo/meta-openembedded,moto-timo/meta-openembedded,openembedded/meta-openembedded,schnitzeltony/meta-openembedded