diff --git a/RedfishPkg/Include/Library/RedfishCrtLib.h b/RedfishPkg/Include/Library/RedfishCrtLib.h
index 23c6acfca3..ac6c5162ad 100644
--- a/RedfishPkg/Include/Library/RedfishCrtLib.h
+++ b/RedfishPkg/Include/Library/RedfishCrtLib.h
@@ -172,20 +172,6 @@ free        (
   void *
   );
 
-void           *
-memset     (
-  void *,
-  int,
-  size_t
-  );
-
-int
-memcmp      (
-  const void *,
-  const void *,
-  size_t
-  );
-
 int
 isdigit     (
   int
@@ -216,47 +202,6 @@ isalnum     (
   int
   );
 
-void           *
-memcpy     (
-  void *,
-  const void *,
-  size_t
-  );
-
-void           *
-memset     (
-  void *,
-  int,
-  size_t
-  );
-
-void           *
-memchr     (
-  const void *,
-  int,
-  size_t
-  );
-
-int
-memcmp      (
-  const void *,
-  const void *,
-  size_t
-  );
-
-void           *
-memmove    (
-  void *,
-  const void *,
-  size_t
-  );
-
-int
-strcmp      (
-  const char *,
-  const char *
-  );
-
 int
 strncmp     (
   const char *,
@@ -264,35 +209,6 @@ strncmp     (
   size_t
   );
 
-char           *
-strcpy     (
-  char *,
-  const char *
-  );
-
-size_t
-strlen      (
-  const char *
-  );
-
-char           *
-strcat     (
-  char *,
-  const char *
-  );
-
-char           *
-strchr     (
-  const char *,
-  int
-  );
-
-int
-strcasecmp  (
-  const char *,
-  const char *
-  );
-
 int
 strncasecmp (
   const char *,
@@ -300,21 +216,6 @@ strncasecmp (
   size_t
   );
 
-char           *
-strncpy    (
-  char *,
-  size_t,
-  const char *,
-  size_t
-  );
-
-int
-strncmp     (
-  const char *,
-  const char *,
-  size_t
-  );
-
 char           *
 strrchr    (
   const char *,
@@ -328,12 +229,6 @@ strtoul     (
   int
   );
 
-char *
-strstr      (
-  const char  *s1,
-  const char  *s2
-  );
-
 long
 strtol      (
   const char *,