diff --git a/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/unicode_fold1_key.c b/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/unicode_fold1_key.c
index 7dbd6a5995..0aa54ee172 100644
--- a/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/unicode_fold1_key.c
+++ b/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/unicode_fold1_key.c
@@ -2983,17 +2983,13 @@ onigenc_unicode_fold1_key(OnigCodePoint codes[])
       4026
     };
 
-  if (0 == 0)
-    {
-      int key = hash(codes);
-
-      if (key <= MAX_HASH_VALUE)
-        {
-          int index = wordlist[key];
-
-          if (index >= 0 && onig_codes_cmp(codes, OnigUnicodeFolds1 + index, 1) == 0)
-            return index;
-        }
+    int key = hash(codes);
+    if (key <= MAX_HASH_VALUE) {
+      int index = wordlist[key];
+      if (index >= 0 && onig_codes_cmp(codes, OnigUnicodeFolds1 + index, 1) == 0) {
+        return index;
+      }
     }
+
   return -1;
 }
diff --git a/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/unicode_fold2_key.c b/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/unicode_fold2_key.c
index 3d93e2417a..44f8cb6600 100644
--- a/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/unicode_fold2_key.c
+++ b/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/unicode_fold2_key.c
@@ -211,17 +211,12 @@ onigenc_unicode_fold2_key(OnigCodePoint codes[])
       129
     };
 
-  if (0 == 0)
-    {
-      int key = hash(codes);
-
-      if (key <= MAX_HASH_VALUE)
-        {
-          int index = wordlist[key];
-
-          if (index >= 0 && onig_codes_cmp(codes, OnigUnicodeFolds2 + index, 2) == 0)
-            return index;
-        }
+    int key = hash(codes);
+    if (key <= MAX_HASH_VALUE) {
+      int index = wordlist[key];
+      if (index >= 0 && onig_codes_cmp(codes, OnigUnicodeFolds2 + index, 2) == 0)
+        return index;
     }
+
   return -1;
 }
diff --git a/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/unicode_fold3_key.c b/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/unicode_fold3_key.c
index bdd5667c6a..b36500b135 100644
--- a/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/unicode_fold3_key.c
+++ b/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/unicode_fold3_key.c
@@ -121,17 +121,13 @@ onigenc_unicode_fold3_key(OnigCodePoint codes[])
       0
     };
 
-  if (0 == 0)
-    {
-      int key = hash(codes);
-
-      if (key <= MAX_HASH_VALUE)
-        {
-          int index = wordlist[key];
-
-          if (index >= 0 && onig_codes_cmp(codes, OnigUnicodeFolds3 + index, 3) == 0)
-            return index;
-        }
+    int key = hash(codes);
+    if (key <= MAX_HASH_VALUE) {
+      int index = wordlist[key];
+      if (index >= 0 && onig_codes_cmp(codes, OnigUnicodeFolds3 + index, 3) == 0) {
+        return index;
+      }
     }
+
   return -1;
 }
diff --git a/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/unicode_unfold_key.c b/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/unicode_unfold_key.c
index 10f7889ea3..1f03b21cfe 100644
--- a/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/unicode_unfold_key.c
+++ b/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/unicode_unfold_key.c
@@ -3288,17 +3288,12 @@ onigenc_unicode_unfold_key(OnigCodePoint code)
       {0x1e907, 4005, 1}
     };
 
-  if (0 == 0)
-    {
-      int key = hash(&code);
-
-      if (key <= MAX_HASH_VALUE)
-        {
-          OnigCodePoint gcode = wordlist[key].code;
-
-          if (code == gcode && wordlist[key].index >= 0)
-            return &wordlist[key];
-        }
+    int key = hash(&code);
+    if (key <= MAX_HASH_VALUE) {
+      OnigCodePoint gcode = wordlist[key].code;
+      if (code == gcode && wordlist[key].index >= 0) {
+        return &wordlist[key];
+      }
     }
   return 0;
 }