bblayers: Removed bblayers for DualEspresso

The bblayers was moved to the custom manifest for the DualEspresso.

bblayers_imx8_dual-espresso.conf

-LCONF_VERSION = "7"
-
-BBPATH = "${TOPDIR}"
-BSPDIR := "${@os.path.abspath(os.path.dirname(d.getVar('FILE', True)) + '/../..')}"
-
-BBFILES ?= ""
-BBLAYERS = " \
-  ${BSPDIR}/sources/poky/meta \
-  ${BSPDIR}/sources/poky/meta-poky \
-  \
-  ${BSPDIR}/sources/meta-openembedded/meta-oe \
-  ${BSPDIR}/sources/meta-openembedded/meta-multimedia \
-  ${BSPDIR}/sources/meta-openembedded/meta-python \
-  ${BSPDIR}/sources/meta-openembedded/meta-networking \
-  ${BSPDIR}/sources/meta-openembedded/meta-filesystems \
-  ${BSPDIR}/sources/meta-python2 \
-  \
-  ${BSPDIR}/sources/meta-seconorth-machine \
-  ${BSPDIR}/sources/meta-seconorth-distro \
-  ${BSPDIR}/sources/meta-qt5 \
-  ${BSPDIR}/sources/meta-seconorth-nogplv3 \
-  ${BSPDIR}/sources/meta-seconorth-dual-espresso \
-  \
-  ${BSPDIR}/sources/meta-freescale \
-  ${BSPDIR}/sources/meta-freescale-distro \
-"