Let breakpad build with -Wall on OS X and Linux.

src/processor/minidump.cc

Index: src/processor/minidump.cc
diff --git a/src/processor/minidump.cc b/src/processor/minidump.cc
index f22400268dce50beb31a1e6627953bec10d8d0e7..ccc90d5af8d8e156b05a0d04aeec4e6fffd6ecb1 100644
--- a/src/processor/minidump.cc
+++ b/src/processor/minidump.cc
@@ -165,19 +165,10 @@ static void Swap(uint128_struct* value) {
 }
 
 // Swapping signed integers
-static inline void Swap(int16_t* value) {
-  Swap(reinterpret_cast<uint16_t*>(value));
-}
-
 static inline void Swap(int32_t* value) {
   Swap(reinterpret_cast<uint32_t*>(value));
 }
 
-static inline void Swap(int64_t* value) {
-  Swap(reinterpret_cast<uint64_t*>(value));
-}
-
-
 static inline void Swap(MDLocationDescriptor* location_descriptor) {
   Swap(&location_descriptor->data_size);
   Swap(&location_descriptor->rva);