diff --git a/crypto/o_str.c b/crypto/o_str.c
index b0e7524820..29c324f474 100644
--- a/crypto/o_str.c
+++ b/crypto/o_str.c
@@ -14,49 +14,6 @@
 #include "internal/cryptlib.h"
 #include "internal/o_str.h"
 
-#if !defined(OPENSSL_IMPLEMENTS_strncasecmp) && \
-    !defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_SYS_WINCE) && \
-    !defined(NETWARE_CLIB)
-# include <strings.h>
-#endif
-
-int OPENSSL_strncasecmp(const char *str1, const char *str2, size_t n)
-{
-#if defined(OPENSSL_IMPLEMENTS_strncasecmp)
-    while (*str1 && *str2 && n) {
-        int res = toupper(*str1) - toupper(*str2);
-        if (res)
-            return res < 0 ? -1 : 1;
-        str1++;
-        str2++;
-        n--;
-    }
-    if (n == 0)
-        return 0;
-    if (*str1)
-        return 1;
-    if (*str2)
-        return -1;
-    return 0;
-#else
-    /*
-     * Recursion hazard warning! Whenever strncasecmp is #defined as
-     * OPENSSL_strncasecmp, OPENSSL_IMPLEMENTS_strncasecmp must be defined as
-     * well.
-     */
-    return strncasecmp(str1, str2, n);
-#endif
-}
-
-int OPENSSL_strcasecmp(const char *str1, const char *str2)
-{
-#if defined(OPENSSL_IMPLEMENTS_strncasecmp)
-    return OPENSSL_strncasecmp(str1, str2, (size_t)-1);
-#else
-    return strcasecmp(str1, str2);
-#endif
-}
-
 int OPENSSL_memcmp(const void *v1, const void *v2, size_t n)
 {
     const unsigned char *c1 = v1, *c2 = v2;
diff --git a/e_os.h b/e_os.h
index 53e0ecf800..700d7d05ce 100644
--- a/e_os.h
+++ b/e_os.h
@@ -476,12 +476,8 @@ struct servent *PASCAL getservbyname(const char *, const char *);
 #   define strdup _strdup
 #   define unlink _unlink
 #  endif
-# elif defined(OPENSSL_SYS_VMS)
-/* VMS below version 7.0 doesn't have strcasecmp() */
-#  include "internal/o_str.h"
-#  define strcasecmp OPENSSL_strcasecmp
-#  define strncasecmp OPENSSL_strncasecmp
-#  define OPENSSL_IMPLEMENTS_strncasecmp
+# else
+#  include <strings.h>
 # endif
 
 /* vxworks */
diff --git a/include/internal/o_str.h b/include/internal/o_str.h
index c1bf7ef039..86403c9ee2 100644
--- a/include/internal/o_str.h
+++ b/include/internal/o_str.h
@@ -12,8 +12,6 @@
 
 # include <stddef.h>            /* to get size_t */
 
-int OPENSSL_strcasecmp(const char *str1, const char *str2);
-int OPENSSL_strncasecmp(const char *str1, const char *str2, size_t n);
 int OPENSSL_memcmp(const void *p1, const void *p2, size_t n);
 
 #endif