Revert "Transaction: Use high priority workqueues for I2C"

This reverts commit 937247ae764ff0feb65c44884ffe1fb115fe2bc1.

Reason for revert: b/201761974: Causes ITS failures.
Bug: 201761974

Change-Id: Id780e07e6cb9bad85eed69d701189c3fd87773f7
1 file changed