diff --git a/include/ctype.h b/include/ctype.h
deleted file mode 100644
index 862a1fb..0000000
--- a/include/ctype.h
+++ /dev/null
@@ -1,46 +0,0 @@
-//===-- C standard library header ctype.h ---------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIBC_CTYPE_H
-#define LLVM_LIBC_CTYPE_H
-
-#include <__llvm-libc-common.h>
-
-__BEGIN_C_DECLS
-
-int isalnum(int);
-
-int isalpha(int);
-
-int isblank(int);
-
-int iscntrl(int);
-
-int isdigit(int);
-
-int isgraph(int);
-
-int islower(int);
-
-int isprint(int);
-
-int ispunct(int);
-
-int isspace(int);
-
-int isupper(int);
-
-int isxdigit(int);
-
-int tolower(int);
-
-int toupper(int);
-
-__END_C_DECLS
-
-#endif // LLVM_LIBC_CTYPE_H