1. set different bed_shrink for seq_print and layered print
2. fix the bug that seq_print arranging may get collision with exclusion
area.
3. remove unused functions.
Jira: STUDIO-4663
Change-Id: I8b726704cca33fe37bb3cb7c4502963a9ad8d16b
(cherry picked from commit f27d00f81315fe4675bbc55ef932403e31a9264f)