Cleanup: Remove unnecessary double-semicolons.

src/images/SkImageDecoder_wbmp.cpp

Index: src/images/SkImageDecoder_wbmp.cpp
diff --git a/src/images/SkImageDecoder_wbmp.cpp b/src/images/SkImageDecoder_wbmp.cpp
index d6d4f828e0ec24e81fc6c8334372368adc296af8..b7a6790ed85a8018e98b4ac48708e8a67ac71ab6 100644
--- a/src/images/SkImageDecoder_wbmp.cpp
+++ b/src/images/SkImageDecoder_wbmp.cpp
@@ -93,7 +93,7 @@ static void expand_bits_to_bytes(uint8_t dst[], const uint8_t src[], int bits)
     if (bits > 0) {
         unsigned mask = *src;
         do {
-            *dst++ = (mask >> 7) & 1;;
+            *dst++ = (mask >> 7) & 1;
             mask <<= 1;
         } while (--bits != 0);
     }