Revert "Skip some tests for mips64(el)-unknown-linux-gnuabi64"

This reverts commit 7aa6026.

Author: JohnTitor

ci/run.sh

@@ -121,10 +121,6 @@ else
 
   cargo test $opt --manifest-path libc-test/Cargo.toml --target "${TARGET}"
 
-  # FIXME: Somehow it now emits errors like:
-  # `relocation truncated to fit: R_MIPS_GOT_DISP against `fchmod@@GLIBC_2.0'`
-  if [ "$TARGET" != "mips64el-unknown-linux-gnuabi64" ] && [ "$TARGET" != "mips64-unknown-linux-gnuabi64" ]; then
   cargo test $opt --features extra_traits --manifest-path libc-test/Cargo.toml \
     --target "${TARGET}"
-  fi
 fi