Update couch_(js_)os_process after ioq removal

Remove ioq call from `couch_os_process:prompt/2` and
`couch_js_os_process:prompt/2`
diff --git a/src/couch/src/couch_os_process.erl b/src/couch/src/couch_os_process.erl
index 63a2414..e17782e 100644
--- a/src/couch/src/couch_os_process.erl
+++ b/src/couch/src/couch_os_process.erl
@@ -51,7 +51,7 @@
     gen_server:cast(Pid, {send, Data}).
 
 prompt(Pid, Data) ->
-    case ioq:call(Pid, {prompt, Data}, erlang:get(io_priority)) of
+    case gen_server:call(Pid, {prompt, Data}, infinity) of
         {ok, Result} ->
             Result;
         Error ->
diff --git a/src/couch_js/src/couch_js_os_process.erl b/src/couch_js/src/couch_js_os_process.erl
index a453d1a..883bc8f 100644
--- a/src/couch_js/src/couch_js_os_process.erl
+++ b/src/couch_js/src/couch_js_os_process.erl
@@ -51,7 +51,7 @@
     gen_server:cast(Pid, {send, Data}).
 
 prompt(Pid, Data) ->
-    case ioq:call(Pid, {prompt, Data}, erlang:get(io_priority)) of
+    case gen_server:call(Pid, {prompt, Data}, infinity) of
         {ok, Result} ->
             Result;
         Error ->