Update packages/plplot/plplot.5.12.1/opam

Author: mseri

packages/plplot/plplot.5.12.1/opam

@@ -16,18 +16,9 @@ depends: [
   "ocaml" {>= "4.02.0"}
   "dune" {>= "2.0.0"}
   "dune-configurator"
+  "conf-plplot"
   "odoc" {with-doc}
 ]
-depexts: [
-  ["libplplot-dev" "libshp-dev"] {os-family = "debian"}
-  ["plplot"] {os = "macos" & os-distribution = "homebrew"}
-  ["plpot"] {os-family = "arch"}
-  ["plplot-devel"] {os-family = "rhel"}
-  ["plplot-devel"] {os-family = "fedora"}
-  ["plplot-devel"] {os-family = "suse"}
-  ["plplot-devel" "epel-release"] {os-distribution = "centos"}
-  ["plplot"] {os-distribution = "nixos"}
-]
 synopsis: "Bindings for the PLplot library"
 description: "PLplot is a library for creating scientific plots http://plplot.sf.net/"
 url {