This is the revert of migration 103, where we added two bigint columns
to package_symbols as part of a multi-step process to enlarge the
foreign key references to the paths table.
Instead, we altered the column types in place (see migration 104), so
these columns aren't necessary.
Change-Id: Ibb78e9decc527837b0ebc7040b963834a5bcc425
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/323852
Trust: Jonathan Amsterdam <jba@google.com>
Run-TryBot: Jonathan Amsterdam <jba@google.com>
TryBot-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jamal Carvalho <jamal@golang.org>
Jonathan Amsterdam