Revert "smb138x: introduce support for smb1355"

This reverts commit 566b44214cc08786375ac8266ee387e431413078 (smb138x:
introduce support for smb1355).

This is not required since smb1355 support is moved to its own driver.

Change-Id: Ibad8595c09a865e273adb6f30d6a75f931220131
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>