Stop saying "typedef struct" and "typedef enum".

Seeing new instances of this C-ism go in makes me a sad panda.

Change-Id: Ie3dd414b8b5e57a4164e88eb2d8559545569628d
diff --git a/jdwpspy/Common.h b/jdwpspy/Common.h
index f942dee..0bd3056 100644
--- a/jdwpspy/Common.h
+++ b/jdwpspy/Common.h
@@ -93,7 +93,7 @@
  * "mem" mode shows the actual memory address, and will offset the start
  * so that the low nibble of the address is always zero.
  */
-typedef enum { kHexDumpLocal, kHexDumpMem } HexDumpMode;
+enum HexDumpMode { kHexDumpLocal, kHexDumpMem };
 void printHexDump(const void* vaddr, size_t length);
 void printHexDump2(const void* vaddr, size_t length, const char* prefix);
 void printHexDumpEx(FILE* fp, const void* vaddr, size_t length,