cdvdgigaherz: Remove unneeded code

plugins/cdvdGigaherz/src/CDVD.cpp

@@ -137,7 +137,6 @@ bool weAreInNewDiskCB = false;
 
 Source *src;
 
-char bfr[2352];
 char throwaway[2352];
 extern s32 prefetch_last_lba;
 extern s32 prefetch_last_mode;

plugins/cdvdGigaherz/src/CDVD.h

@@ -149,15 +149,10 @@ extern HINSTANCE hinst;
 
 #define MSF_TO_LBA(m, s, f) ((m * 60 + s) * 75 + f - 150)
 
-s32 cdvdDirectReadSector(s32 first, s32 mode, char *buffer);
-
-s32 cdvdGetMediaType();
-
 void ReadSettings();
 void WriteSettings();
 void CfgSetSettingsDir(const char *dir);
 
-extern char csrc[];
 extern bool cdvd_is_open;
 extern bool cdvdKeepAlive_is_open;
 extern bool disc_has_changed;

plugins/cdvdGigaherz/src/ReadThread.cpp

@@ -29,12 +29,6 @@ CRITICAL_SECTION CacheMutex;
 
 DWORD pidThread = 0;
 
-enum loadStatus {
-    LoadIdle,
-    LoadPending,
-    LoadSuccess,
-};
-
 typedef struct
 {
     int lsn;
@@ -390,8 +384,6 @@ s32 cdvdGetMediaType()
     return src->GetMediaType();
 }
 
-s32 refreshes = 0;
-
 s32 cdvdRefreshData()
 {
     char *diskTypeName = "Unknown";