Revert "use canvas_rails_switcher for bin/spring"
Revert "use canvas_rails_switcher for bin/spring"

This reverts commit 76b7d8a66e8580783cf1ee24472d7bd9d3d519d2.

Reason for revert: broke deploy

Change-Id: Ide7073ba2b1328aa7a28ebd085fddf258990f718
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/288021
Reviewed-by: Andrea Cirulli <b4e55ef5ee4bae8ad31f7c81009bfc0af1714a1f@instructure.com>
Tested-by: Aaron Ogata <11ccf682c06d1508642f943a3962a1c3d00b8e44@instructure.com>
QA-Review: Aaron Ogata <11ccf682c06d1508642f943a3962a1c3d00b8e44@instructure.com>
Product-Review: Aaron Ogata <11ccf682c06d1508642f943a3962a1c3d00b8e44@instructure.com>

sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms