1 files changed, 0 insertions, 64 deletions
diff --git a/src/libs/7zip/win/C/Delta.c b/src/libs/7zip/win/C/Delta.c
deleted file mode 100644
index e3edd21ed..000000000
--- a/src/libs/7zip/win/C/Delta.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/* Delta.c -- Delta converter
-2009-05-26 : Igor Pavlov : Public domain */
-
-#include "Precomp.h"
-
-#include "Delta.h"
-
-void Delta_Init(Byte *state)
-{
-  unsigned i;
-  for (i = 0; i < DELTA_STATE_SIZE; i++)
-    state[i] = 0;
-}
-
-static void MyMemCpy(Byte *dest, const Byte *src, unsigned size)
-{
-  unsigned i;
-  for (i = 0; i < size; i++)
-    dest[i] = src[i];
-}
-
-void Delta_Encode(Byte *state, unsigned delta, Byte *data, SizeT size)
-{
-  Byte buf[DELTA_STATE_SIZE];
-  unsigned j = 0;
-  MyMemCpy(buf, state, delta);
-  {
-    SizeT i;
-    for (i = 0; i < size;)
-    {
-      for (j = 0; j < delta && i < size; i++, j++)
-      {
-        Byte b = data[i];
-        data[i] = (Byte)(b - buf[j]);
-        buf[j] = b;
-      }
-    }
-  }
-  if (j == delta)
-    j = 0;
-  MyMemCpy(state, buf + j, delta - j);
-  MyMemCpy(state + delta - j, buf, j);
-}
-
-void Delta_Decode(Byte *state, unsigned delta, Byte *data, SizeT size)
-{
-  Byte buf[DELTA_STATE_SIZE];
-  unsigned j = 0;
-  MyMemCpy(buf, state, delta);
-  {
-    SizeT i;
-    for (i = 0; i < size;)
-    {
-      for (j = 0; j < delta && i < size; i++, j++)
-      {
-        buf[j] = data[i] = (Byte)(buf[j] + data[i]);
-      }
-    }
-  }
-  if (j == delta)
-    j = 0;
-  MyMemCpy(state, buf + j, delta - j);
-  MyMemCpy(state + delta - j, buf, j);
-}