diff --git a/cpp/ql/test/library-tests/regex/regexp.rb b/cpp/ql/test/library-tests/regex/regexp.rb
deleted file mode 100644
index a68c4878094..00000000000
--- a/cpp/ql/test/library-tests/regex/regexp.rb
+++ /dev/null
@@ -1,82 +0,0 @@
-# Empty
-//
-
-# Basic sequence
-/abc/
-
-# Repetition
-/a*b+c?d/
-/a{4,8}/
-/a{,8}/
-/a{3,}/
-/a{7}/
-
-# Alternation
-/foo|bar/
-
-# Character classes
-/[abc]/
-/[a-fA-F0-9_]/
-/\A[+-]?\d+/
-/[\w]+/
-/\[\][123]/
-/[^A-Z]/
-/[]]/  # MRI gives a warning, but accepts this as matching ']'
-/[^]]/ # MRI gives a warning, but accepts this as matching anything except ']'
-/[^-]/
-/[|]/
-
-# Nested character classes
-/[[a-f]A-F]/ # BAD - not parsed correctly
-
-# Meta-character classes
-/.*/
-/.*/m
-/\w+\W/
-/\s\S/
-/\d\D/
-/\h\H/
-/\n\r\t/
-
-# Anchors
-/\Gabc/
-/\b!a\B/
-
-# Groups
-/(foo)*bar/
-/fo(o|b)ar/
-/(a|b|cd)e/
-/(?::+)\w/ # Non-capturing group matching colons
-
-# Named groups
-/(?<id>\w+)/
-/(?'foo'fo+)/
-
-# Backreferences
-/(a+)b+\1/
-/(?<qux>q+)\s+\k<qux>+/
-
-# Named character properties using the p-style syntax
-/\p{Word}*/
-/\P{Digit}+/
-/\p{^Alnum}{2,3}/
-/[a-f\p{Digit}]+/ # Also valid inside character classes
-
-# Two separate character classes, each containing a single POSIX bracket expression
-/[[:alpha:]][[:digit:]]/
-
-# A single character class containing two POSIX bracket expressions
-/[[:alpha:][:digit:]]/
-
-# A single character class containing two ranges and one POSIX bracket expression
-/[A-F[:digit:]a-f]/
-
-# *Not* a POSIX bracket expression; just a regular character class.
-/[:digit:]/
-
-# Simple constant interpolation
-A = "a"
-/#{A}bc/
-
-# unicode
-/\u{9879}/
\ No newline at end of file