diff --git a/test/repro-maintainer/grapheme_levenshtein_missing.php b/test/repro-maintainer/grapheme_levenshtein_missing.php
deleted file mode 100644
index b6b86b6610..0000000000
--- a/test/repro-maintainer/grapheme_levenshtein_missing.php
+++ /dev/null
@@ -1,10 +0,0 @@
-<?php
-declare(strict_types=1);
-
-// Issue #22661 — Zend/php-src never ships grapheme_levenshtein(); must stay missing.
-if (function_exists('grapheme_levenshtein')) {
-    fwrite(STDERR, "PHANTOM grapheme_levenshtein still registered\n");
-    exit(1);
-}
-
-echo "ok\n";
diff --git a/test/repro/maintainer_gap_dom_schema_validate_missing_libxml_errors.php b/test/repro/maintainer_gap_dom_schema_validate_missing_libxml_errors.php
deleted file mode 100644
index 177a27e5c7..0000000000
--- a/test/repro/maintainer_gap_dom_schema_validate_missing_libxml_errors.php
+++ /dev/null
@@ -1,49 +0,0 @@
-<?php
-declare(strict_types=1);
-
-/** #20776 — schemaValidate/relaxNGValidate missing path under libxml_use_internal_errors. */
-
-libxml_use_internal_errors(true);
-libxml_clear_errors();
-
-$doc = new DOMDocument();
-$doc->loadXML('<r/>');
-
-$warnings = [];
-set_error_handler(static function (int $severity, string $message) use (&$warnings): bool {
-    $warnings[] = $message;
-    return true;
-});
-
-$schemaOk = $doc->schemaValidate('/tmp/definitely-missing-schema-xyz.xsd');
-$schemaWarnings = $warnings;
-$schemaErrors = libxml_get_errors();
-
-$warnings = [];
-libxml_clear_errors();
-$relaxOk = $doc->relaxNGValidate('/tmp/definitely-missing-relaxng-xyz.rng');
-restore_error_handler();
-$relaxWarnings = $warnings;
-$relaxErrors = libxml_get_errors();
-
-echo 'schema_ok=' . ($schemaOk ? '1' : '0') . "\n";
-echo 'schema_php=' . count($schemaWarnings) . "\n";
-if (isset($schemaWarnings[0])) {
-    echo 'schema_w0=' . $schemaWarnings[0] . "\n";
-}
-echo 'schema_libxml=' . count($schemaErrors) . "\n";
-if (isset($schemaErrors[0], $schemaErrors[1])) {
-    echo 'schema_e0=' . $schemaErrors[0]->level . ':' . $schemaErrors[0]->code . ':' . trim($schemaErrors[0]->message) . "\n";
-    echo 'schema_e1=' . $schemaErrors[1]->level . ':' . $schemaErrors[1]->code . ':' . trim($schemaErrors[1]->message) . "\n";
-}
-
-echo 'relax_ok=' . ($relaxOk ? '1' : '0') . "\n";
-echo 'relax_php=' . count($relaxWarnings) . "\n";
-if (isset($relaxWarnings[0])) {
-    echo 'relax_w0=' . $relaxWarnings[0] . "\n";
-}
-echo 'relax_libxml=' . count($relaxErrors) . "\n";
-if (isset($relaxErrors[0], $relaxErrors[1])) {
-    echo 'relax_e0=' . $relaxErrors[0]->level . ':' . $relaxErrors[0]->code . ':' . trim($relaxErrors[0]->message) . "\n";
-    echo 'relax_e1=' . $relaxErrors[1]->level . ':' . $relaxErrors[1]->code . ':' . trim($relaxErrors[1]->message) . "\n";
-}
diff --git a/test/repro/maintainer_gap_mb_ucfirst_forward84_missing.php b/test/repro/maintainer_gap_mb_ucfirst_forward84_missing.php
deleted file mode 100644
index 3cecbb7683..0000000000
--- a/test/repro/maintainer_gap_mb_ucfirst_forward84_missing.php
+++ /dev/null
@@ -1,27 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-if (!function_exists('mb_ucfirst') || !function_exists('mb_lcfirst')) {
-    echo "fail: mb_ucfirst/mb_lcfirst not registered\n";
-    exit(1);
-}
-
-if (!function_exists('mb_ucfirst') || !function_exists('mb_lcfirst')) {
-    echo "fail: introspection false while callable\n";
-    exit(1);
-}
-
-$uc = mb_ucfirst('über');
-if ('Über' !== $uc) {
-    echo "fail: mb_ucfirst got ", var_export($uc, true), "\n";
-    exit(1);
-}
-
-$lc = mb_lcfirst('Über');
-if ('über' !== $lc) {
-    echo "fail: mb_lcfirst got ", var_export($lc, true), "\n";
-    exit(1);
-}
-
-echo "ok\n";
diff --git a/test/repro/maintainer_gap_mb_ucwords_missing_forward84.php b/test/repro/maintainer_gap_mb_ucwords_missing_forward84.php
deleted file mode 100644
index d26cc9fd66..0000000000
--- a/test/repro/maintainer_gap_mb_ucwords_missing_forward84.php
+++ /dev/null
@@ -1,10 +0,0 @@
-<?php
-// Repro #21458 — mb_ucwords() must stay undefined on PROFILE=8.4 (Zend never ships it)
-declare(strict_types=1);
-
-if (function_exists('mb_ucwords')) {
-    echo "fail: mb_ucwords still registered\n";
-    exit(1);
-}
-
-echo "exists:no\n";