nfs4: Remove RequestBuilder::ReadDir() count argument

The argument is ignored anyway. This fixes CID 991593.

src/add-ons/kernel/file_systems/nfs4/NFS4Inode.cpp

@@ -966,7 +966,7 @@ NFS4Inode::ReadDirOnce(DirEntry** dirents, uint32* count, OpenDirCookie* cookie,
 			req.GetAttr(dirAttr, sizeof(dirAttr) / sizeof(Attribute));
 
 		Attribute attr[] = { FATTR4_FSID, FATTR4_FILEID };
-		req.ReadDir(*count, *dirCookie, *dirCookieVerf, attr,
+		req.ReadDir(*dirCookie, *dirCookieVerf, attr,
 			sizeof(attr) / sizeof(Attribute));
 
 		req.GetAttr(dirAttr, sizeof(dirAttr) / sizeof(Attribute));

src/add-ons/kernel/file_systems/nfs4/RequestBuilder.cpp

@@ -516,11 +516,9 @@ RequestBuilder::Read(const uint32* id, uint32 stateSeq, uint64 pos, uint32 len)
 
 
 status_t
-RequestBuilder::ReadDir(uint32 count, uint64 cookie, uint64 cookieVerf,
-	Attribute* attrs, uint32 attrCount)
+RequestBuilder::ReadDir(uint64 cookie, uint64 cookieVerf, Attribute* attrs,
+	uint32 attrCount)
 {
-	(void)count;
-
 	if (fProcedure != ProcCompound)
 		return B_BAD_VALUE;
 	if (fRequest == NULL)

src/add-ons/kernel/file_systems/nfs4/RequestBuilder.h

@@ -63,9 +63,8 @@ public:
 			status_t				PutRootFH();
 			status_t				Read(const uint32* id, uint32 stateSeq,
 										uint64 pos, uint32 len);
-			status_t				ReadDir(uint32 count, uint64 cookie,
-										uint64 cookieVerf, Attribute* attrs,
-										uint32 attrCount);
+			status_t				ReadDir(uint64 cookie, uint64 cookieVerf,
+										Attribute* attrs, uint32 attrCount);
 			status_t				ReadLink();
 			status_t				Remove(const char* file);
 			status_t				Rename(const char* from, const char* to);