Revert "Set runtime stack size to 2M for 32bit platform in smoke test."

This reverts commit bde1b76f1025cd01511b728ec7efe7c620eac92f.

linux32 was fixed by cee911bf5a
Merge pull request #259 from thomasvandoren/update-linux32-build-script

Revert "Set runtime stack size to 2M for 32bit platform in smoke test."

This reverts commit bde1b76.

linux32 was fixed by cee911b

requested by @ronawho