[gimp] plug-ins: move benchmark-foreground-extract to gimp-data-extras.

[Jehan <jehanp src gnome org>]

commit 623ce4a9e3bf7b6bbfffea8fd23274956a3ac630
Author: Jehan <jehan girinstud io>
Date:   Mon Apr 19 18:10:54 2021 +0200

    plug-ins: move benchmark-foreground-extract to gimp-data-extras.
    
    We did port it to the new API but we are doubting it is useful at all.
    It might have been, historically, when foreground extract algorithm was
    first introduced, but probably not anymore, even more as the algorithm
    is now implemented mostly on GEGL side anyway. So if any benchmark were
    to be done, it should probably be added as GEGL tests.
    
    Also as we are planning to update even more the API lately, it feels
    really like a waste of time to also fix this plug-in while we currently
    believe it to be useless.
    
    Still we move it to the gimp-data-extras repository for being able to
    easily bring it back in case we missed some use.

 plug-ins/python/Makefile.am                     |   9 -
 plug-ins/python/benchmark-foreground-extract.py | 250 ------------------------
 plug-ins/python/meson.build                     |   6 -
 3 files changed, 265 deletions(-)
---
diff --git a/plug-ins/python/Makefile.am b/plug-ins/python/Makefile.am
index 82c75adf32..815d8db565 100644
--- a/plug-ins/python/Makefile.am
+++ b/plug-ins/python/Makefile.am
@@ -33,11 +33,6 @@ python_eval_SCRIPTS = python-eval.py
 spyro_plusdir = $(gimpplugindir)/plug-ins/spyro-plus
 spyro_plus_SCRIPTS = spyro-plus.py
 
-if GIMP_UNSTABLE
-benchmark_foreground_extractdir = $(gimpplugindir)/plug-ins/benchmark-foreground-extract
-benchmark_foreground_extract_SCRIPTS = benchmark-foreground-extract.py
-endif
-
 EXTRA_DIST = \
        colorxhtml.py                   \
        file-openraster.py              \
@@ -50,10 +45,6 @@ EXTRA_DIST = \
        python-eval.py                  \
        spyro-plus.py
 
-if GIMP_UNSTABLE
-EXTRA_DIST += benchmark-foreground-extract.py
-endif
-
 # Python interpreter file.
 
 pyinterpdir = $(gimpplugindir)/interpreters
diff --git a/plug-ins/python/meson.build b/plug-ins/python/meson.build
index afae291f9d..656eb4d1ee 100644
--- a/plug-ins/python/meson.build
+++ b/plug-ins/python/meson.build
@@ -15,12 +15,6 @@ plugins = [
   { 'name': 'spyro-plus' },
 ]
 
-if not stable
-  plugins += [
-    { 'name': 'benchmark-foreground-extract' }
-  ]
-endif
-
 subdir('python-console')
 
 foreach plugin : plugins