Remove unused code warnings found by clang.

core/src/fpdfapi/fpdf_cmaps/CNS1/UniCNS-UTF16-H_0.cpp

Index: core/src/fpdfapi/fpdf_cmaps/CNS1/UniCNS-UTF16-H_0.cpp
diff --git a/core/src/fpdfapi/fpdf_cmaps/CNS1/UniCNS-UTF16-H_0.cpp b/core/src/fpdfapi/fpdf_cmaps/CNS1/UniCNS-UTF16-H_0.cpp
index f4ff8d6719147018c4a4f05598f1dd9146be0335..a39260b6c6ff181645779fd566de83abd91e206d 100644
--- a/core/src/fpdfapi/fpdf_cmaps/CNS1/UniCNS-UTF16-H_0.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/CNS1/UniCNS-UTF16-H_0.cpp
@@ -3243,7 +3243,3 @@ const FX_WORD g_FXCMAP_UniCNS_UTF16_H_0[14557 * 2] = {
     0x0085, 0xFF5E, 0x00E4, 0xFF64, 0x0071, 0xFFE0, 0x0106, 0xFFE1, 0x0107,
     0xFFE2, 0x36E1, 0xFFE3, 0x00C4, 0xFFE4, 0x36E2, 0xFFE5, 0x0104,
 };
-
-const FX_WORD g_FXCMAP_UniCNS_UTF16_H_0_DWord[3 * 3] = {
-    0xD840, 0xDC8A, 0x36B2, 0xD840, 0xDCCC, 0x36B0, 0xD85D, 0xDE07, 0x36B8,
-};