gnu: calibre: Clean up 'wrap phase.

gnu: calibre: Clean up 'wrap phase.

Based on the suggestion of the author, this commit cleans up the
changes introduced by fd3eac4dd774597d493e6d8aae7b1c2653070bc7

For more information, see: https://issues.guix.gnu.org/43249

* gnu/packages/e-book.scm (calibre):
[arguments]: Remove the manual 'wrap phase replacement and add a
'wrap-program phase after standard 'wrap phase to make the runtime
dependency QtWebEngineProcess available to the binaries.

Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>