windowscodecs: Remove unneeded address-of operators from array names

[Andrew Talbot]

Changelog:
    windowscodecs: Remove unneeded address-of operators from array names.

diff --git a/dlls/windowscodecs/gifformat.c b/dlls/windowscodecs/gifformat.c
index ce63af9..84838e2 100644
--- a/dlls/windowscodecs/gifformat.c
+++ b/dlls/windowscodecs/gifformat.c
@@ -1362,7 +1362,7 @@ static HRESULT WINAPI GifDecoder_Block_GetReaderByIndex(IWICMetadataBlockReader
     if (!reader) return E_INVALIDARG;
 
     if (index == 0)
-        return create_metadata_reader(&This->LSD_data, sizeof(This->LSD_data),
+        return create_metadata_reader(This->LSD_data, sizeof(This->LSD_data),
                                       &CLSID_WICLSDMetadataReader, reader);
 
     for (i = 0; i < This->gif->Extensions.ExtensionBlockCount; i++)
diff --git a/dlls/windowscodecs/jpegformat.c b/dlls/windowscodecs/jpegformat.c
index 57f1b55..6463de5 100644
--- a/dlls/windowscodecs/jpegformat.c
+++ b/dlls/windowscodecs/jpegformat.c
@@ -1022,7 +1022,7 @@ static HRESULT WINAPI JpegEncoder_Frame_WritePixels(IWICBitmapFrameEncode *iface
         HeapFree(GetProcessHeap(), 0, swapped_data);
         return E_FAIL;
     }
-    This->cinfo.client_data = &jmpbuf;
+    This->cinfo.client_data = jmpbuf;
 
     if (!This->started_compress)
     {
@@ -1189,7 +1189,7 @@ static HRESULT WINAPI JpegEncoder_Frame_Commit(IWICBitmapFrameEncode *iface)
         LeaveCriticalSection(&This->lock);
         return E_FAIL;
     }
-    This->cinfo.client_data = &jmpbuf;
+    This->cinfo.client_data = jmpbuf;
 
     pjpeg_finish_compress(&This->cinfo);
 
@@ -1299,7 +1299,7 @@ static HRESULT WINAPI JpegEncoder_Initialize(IWICBitmapEncoder *iface,
 
     This->cinfo.err = &This->jerr;
 
-    This->cinfo.client_data = &jmpbuf;
+    This->cinfo.client_data = jmpbuf;
 
     if (setjmp(jmpbuf))
     {