Remove tee from multilib build

tee and stdout/stderr redirection mangle the build output we get on
Azure Pipelines significantly, making it close to impossible to see
where an error occurred. The build log remains available through Azure
Pipelines.

Author: imphil

build-gcc-multilib.sh

@@ -19,16 +19,16 @@ git checkout $RISCV_GNU_TOOLCHAIN_COMMIT_ID
 
 # Build ELF Multilib
 ./configure --prefix=/tools/riscv/elf \
-    --enable-multilib 2>&1 | tee --append $ARTIFACT_STAGING_DIR/$TOOLCHAIN_NAME.log
-make -j$(( `nproc` * 2 )) 2>&1 | tee --append $ARTIFACT_STAGING_DIR/$TOOLCHAIN_NAME.log
+    --enable-multilib
+make -j$(( `nproc` * 2 ))
 
 make clean
 # Build Linux Multilib
 ./configure --prefix=/tools/riscv/linux \
-    --enable-multilib 2>&1 | tee --append $ARTIFACT_STAGING_DIR/$TOOLCHAIN_NAME.log
-make -j$(( `nproc` * 2 )) linux 2>&1 | tee --append $ARTIFACT_STAGING_DIR/$TOOLCHAIN_NAME.log
+    --enable-multilib
+make -j$(( `nproc` * 2 )) linux
 
-make -j$(( `nproc` * 2 )) build-qemu 2?&1 | tee --append $ARTIFACT_STAGING_DIR/$TOOLCHAIN_NAME.log
+make -j$(( `nproc` * 2 )) build-qemu
 
 echo -n 'lowRISC toolchain version: ' >> /tools/riscv/buildinfo
 git -C $TOP describe --always >> /tools/riscv/buildinfo