remove ppxlib dependency

Author: jmid

domainslib.opam

@@ -13,7 +13,6 @@ depends: [
   "dune" {>= "3.0"}
   "lockfree" { >= "0.2.0"}
   "mirage-clock-unix" {with-test}
-  "ppx_deriving" {with-test & >= "5.2.1"}
   "qcheck-core" {with-test & >= "0.20"}
   "qcheck-multicoretests-util" {with-test & >= "0.1"}
   "qcheck-stm" {with-test & >= "0.1"}

test/dune

@@ -117,14 +117,12 @@
  (name task_one_dep)
  (modules task_one_dep)
  (libraries qcheck-multicoretests-util qcheck-core qcheck-core.runner domainslib)
- (preprocess (pps ppx_deriving.show))
  (action (run %{test} --verbose)))
 
 (test
  (name task_more_deps)
  (modules task_more_deps)
  (libraries qcheck-multicoretests-util qcheck-core qcheck-core.runner domainslib)
- (preprocess (pps ppx_deriving.show))
  (action (run %{test} --verbose)))
 
 (test
@@ -139,5 +137,4 @@
  (name chan_stm_tests)
  (modules chan_stm_tests)
  (libraries qcheck-stm.sequential qcheck-stm.domain domainslib)
- (preprocess (pps ppx_deriving.show))
  (action (run %{test} --verbose)))