Remove glyph_map test that uses retain gids.

We no longer allow the use of glyph map + retain gids (see: https://github.com/harfbuzz/harfbuzz/blob/main/src/hb-subset-plan.cc#L817). Also add the test to the meson file so it will be run by default.

test/subset/data/Makefile.am

@@ -56,6 +56,7 @@ EXTRA_DIST += \
 	expected/cbdt \
 	expected/variable \
 	expected/glyph_names \
+	expected/glyph_map \
 	expected/math \
 	expected/math_coverage_offset \
 	expected/post \

test/subset/data/Makefile.sources

@@ -47,6 +47,7 @@ TESTS = \
         tests/sbix.tests \
 	tests/variable.tests \
 	tests/glyph_names.tests \
+	tests/glyph_map.tests \
 	tests/math.tests \
 	tests/math_coverage_offset.tests \
 	tests/post.tests \

test/subset/data/profiles/glyph_map_roboto_retain_gids.txt

@@ -1,4 +0,0 @@
---gid-map=37:37,39:39,69:69,74:74,77:77,444:444,446:446,561:561,563:563
---gids=444,446,561,563
---layout-features+=c2sc
---retain-gids

test/subset/data/tests/glyph_map.tests

@@ -3,7 +3,6 @@ Roboto-Regular.ttf
 
 PROFILES:
 glyph_map_roboto.txt
-glyph_map_roboto_retain_gids.txt
 
 SUBSETS:
 ACafi

test/subset/meson.build

@@ -50,6 +50,7 @@ tests = [
   'cbdt',
   'variable',
   'glyph_names',
+  'glyph_map',
   'post',
   '32bit_var_store',
   'pin_all_at_default',