[libunwind] Fix a -Wextra-semi warning

Author: arichardson

libunwind/src/FrameHeaderCache.hpp

@@ -31,8 +31,8 @@
 
 class _LIBUNWIND_HIDDEN FrameHeaderCache {
   struct CacheEntry {
-    uintptr_t LowPC() { return Info.dso_base; };
-    uintptr_t HighPC() { return Info.dso_base + Info.text_segment_length; };
+    uintptr_t LowPC() { return Info.dso_base; }
+    uintptr_t HighPC() { return Info.dso_base + Info.text_segment_length; }
     UnwindInfoSections Info;
     CacheEntry *Next;
   };