local.conf.sample: Update local.conf sample to match 2018.3 changes

Getting rid of unnecessary lines in local.conf to match 2018.3 changes

Signed-off-by: Jaewon Lee <jaewon.lee@xilinx.com>
Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>

conf/local.conf.sample

@@ -200,7 +200,6 @@ BB_DISKMON_DIRS = "\
 #file://.* file:///some/local/dir/sstate/PATH"
 
 XILINX_VER_MAIN = "2018.3"
-XILINX_SDK_TOOLCHAIN = "/proj/xbuilds/2018.3_daily_latest/installs/lin64/SDK/2018.3"
 
 # XILINX_VIVADO_DESIGN_SUIT should point to the Vivado installation directly if you are using xilinx-mcs recipe in meta-xilinx-tools
 #XILINX_VIVADO_DESIGN_SUIT = "/proj/xbuilds/2018.3_daily_latest/installs/lin64/Vivado/2018.3"
@@ -214,11 +213,6 @@ XILINX_SDK_TOOLCHAIN = "/proj/xbuilds/2018.3_daily_latest/installs/lin64/SDK/201
 # EXTERNALSRC_pn-u-boot-xlnx-dev = "${BASE}/sources/u-boot"
 # RM_WORK_EXCLUDE += "u-boot-xlnx-dev"
 
-#Using Xilinx QEMU, need to enable QEMUBOOT and provide path to PMU ROM
-#XILINX_QEMUBOOT = "1"
-#XILINX_QEMUBOOT_MULTI = "1"
-#QB_OPT_XILINX_PMU_ROM = "/<path-to-rom>/pmu_rom_qemu_sha3.elf"
-
 # CONF_VERSION is increased each time build/conf/ changes incompatibly and is used to
 # track the version of this file when it was generated. This can safely be ignored if
 # this doesn't mean anything to you.