The derivation for the GHCJS `vector` package broke in #142940 due to
introducing the line of code that this change deletes.
The offending line appears to have been unintentionally added and
causes an evaluation failure for two separate reason :
* The argument order is wrong
The change in #142940 switched the `haskellLib` utilities to flip
their argument order, but the `appendPatch` in the offending line
has the original argument order
* The patch file referenced by the offending line does not exist
The correct fix is to delete the line, because the patch is not
necessary. The default version of the `vector` package is `0.12.3.1`,
which already includes the fix from that patch.
bb976f4e86