Revert "tests: Add a test for posix-basic alternation"

Turns out alternation is not actually part of the POSIX basic regular
expression language, it's just a glibc extension.

This reverts commit c898af13a671ee92a056467d324f16823594eb1c.

2 files changed, 0 insertions, 7 deletions

diff --git a/tests.sh b/tests.sh
index 2907678..c0a3a79 100755
--- a/tests.sh
+++ b/tests.sh
@@ -622,7 +622,6 @@ gnu_tests=(
     test_regex
     test_regex_parens
     test_regex_error
-    test_regex_alternation
 
     test_regextype_posix_basic
     test_regextype_posix_extended
@@ -2036,10 +2035,6 @@ function test_regextype_posix_basic() {
     bfs_diff -regextype posix-basic -regex '\./\((\)'
 }
 
-function test_regex_alternation() {
-    bfs_diff basic -regextype posix-basic -regex 'basic/\(a\|b\)'
-}
-
 function test_regextype_posix_extended() {
     cd weirdnames
     bfs_diff -regextype posix-extended -regex '\./(\()'
diff --git a/tests/test_regex_alternation.out b/tests/test_regex_alternation.out
deleted file mode 100644
index e2bc098..0000000
--- a/tests/test_regex_alternation.out
+++ /dev/null
@@ -1,2 +0,0 @@
-basic/a
-basic/b