Remove .tarball-revision generation from meson dist

Toward making release tarball identical to git checkout now that we are moving to meson.

Makefile.am

@@ -42,7 +42,6 @@ EXTRA_DIST = \
 	perf/texts/fa-thelittleprince.txt \
 	meson-cc-tests/intel-atomic-primitives-test.c \
 	meson-cc-tests/solaris-atomic-operations.c \
-	write-tarball-revision.py \
 	$(NULL)
 
 MAINTAINERCLEANFILES = \

meson.build

@@ -358,10 +358,6 @@ if not get_option('gtk_doc').disabled()
   subdir('docs')
 endif
 
-if not meson.is_subproject()
-  meson.add_dist_script('write-tarball-revision.py')
-endif
-
 configure_file(output: 'config.h', configuration: conf)
 
 summary({'prefix': get_option('prefix'),

write-tarball-revision.py

@@ -1,13 +0,0 @@
-#!/usr/bin/env python3
-
-import os, subprocess
-from pathlib import Path
-
-outfile = Path(
-    os.getenv ('MESON_DIST_ROOT')
-    or os.getenv ('MESON_SOURCE_ROOT')
-    or Path(__file__).parent
-) / '.tarball-revision'
-
-with open(outfile, 'wb') as f:
-	f.write(subprocess.check_output(['git', 'log', '--no-color', '--no-decorate', 'HEAD~..HEAD']))