Revert "Add CT_MULTILIB_SPACE=y to arm and arc configurations"

This reverts commit 90d6193.

Revert to be able to have a full build on macos. To be enabled
after making picolibc default and dropping newlib.

Author: nashif

configs/arc-zephyr-elf.config

@@ -4,4 +4,3 @@ CT_ARCH_ARC=y
 CT_TARGET_VENDOR="zephyr"
 CT_TARGET_CFLAGS="-mno-sdata -mtp-regno=26 -ftls-model=local-exec"
 CT_MULTILIB=y
-CT_MULTILIB_SPACE=y

configs/arm-zephyr-eabi.config

@@ -5,6 +5,5 @@ CT_ARCH_ARM_INTERWORKING=y
 CT_TARGET_VENDOR="zephyr"
 CT_TARGET_CFLAGS="-ftls-model=local-exec"
 CT_MULTILIB=y
-CT_MULTILIB_SPACE=y
 CT_CC_GCC_MULTILIB_LIST="rmprofile"
 CT_LIBC_NEWLIB_NANO_TARGET_CFLAGS="-mthumb-interwork"

configs/common.config

@@ -72,5 +72,4 @@ CT_PICOLIBC_SRC_CUSTOM=y
 CT_PICOLIBC_CUSTOM_LOCATION="${GITHUB_WORKSPACE}/picolibc"
 CT_LIBC_PICOLIBC_GLOBAL_ATEXIT=y
 CT_LIBC_PICOLIBC_EXTRA_SECTIONS=y
-CT_LIBC_PICOLIBC_ENABLE_TARGET_OPTSPACE=n
 CT_LIBC_PICOLIBC_EXTRA_CONFIG_ARRAY="-Dthread-local-storage=auto -Derrno-function=zephyr -Dsysroot-install=true -Dsysroot-install-skip-checks=true -Dassert-verbose=false"