[minor improvement] Pass 0 as the content size in the DDS

The DDS structure can't be copied into the working tables like the DMS.
So it doesn't need to account for the source size when sizing its
parameters, just the dictionary size.
diff --git a/lib/compress/zstd_compress.c b/lib/compress/zstd_compress.c
index b0f0e9e..09ec152 100644
--- a/lib/compress/zstd_compress.c
+++ b/lib/compress/zstd_compress.c
@@ -878,7 +878,6 @@
 
 static ZSTD_compressionParameters ZSTD_dedicatedDictSearch_getCParams(
         int const compressionLevel,
-        unsigned long long srcSizeHint,
         size_t const dictSize);
 static int ZSTD_dedicatedDictSearch_isSupported(
         const ZSTD_compressionParameters* cParams);
@@ -3559,7 +3558,7 @@
 
     if (cctxParams.enableDedicatedDictSearch) {
         cParams = ZSTD_dedicatedDictSearch_getCParams(
-            cctxParams.compressionLevel, ZSTD_CONTENTSIZE_UNKNOWN, dictSize);
+            cctxParams.compressionLevel, dictSize);
         ZSTD_overrideCParams(&cParams, &cctxParams.cParams);
     } else {
         cParams = ZSTD_getCParamsFromCCtxParams(
@@ -4362,9 +4361,9 @@
 },
 };
 
-static ZSTD_compressionParameters ZSTD_dedicatedDictSearch_getCParams(int const compressionLevel, unsigned long long srcSizeHint, size_t const dictSize)
+static ZSTD_compressionParameters ZSTD_dedicatedDictSearch_getCParams(int const compressionLevel, size_t const dictSize)
 {
-    ZSTD_compressionParameters cParams = ZSTD_getCParams_internal(compressionLevel, srcSizeHint, dictSize);
+    ZSTD_compressionParameters cParams = ZSTD_getCParams_internal(compressionLevel, 0, dictSize);
     switch (cParams.strategy) {
         case ZSTD_fast:
         case ZSTD_dfast: