remove unused headers from blob protocol layer (#2546)

* remove unused headers from blob protocol layer

* fix typo

* Add rehydrated to spell check exception list

.vscode/cspell.json

@@ -57,6 +57,7 @@
     "Ragzrs",
     "Reconnector",
     "Reitz",
+    "rehydrated",
     "retriable",
     "rwxrw",
     "SDDL",

sdk/storage/azure-storage-blobs/inc/azure/storage/blobs/protocol/blob_rest_client.hpp

@@ -3,11 +3,8 @@
 
 #pragma once
 
-#include <cstring>
-#include <limits>
-#include <map>
-#include <set>
-#include <stdexcept>
+#include <chrono>
+#include <memory>
 #include <string>
 #include <type_traits>
 #include <vector>
@@ -17,7 +14,6 @@
 #include <azure/core/etag.hpp>
 #include <azure/core/http/http.hpp>
 #include <azure/core/internal/http/pipeline.hpp>
-#include <azure/core/internal/strings.hpp>
 #include <azure/core/nullable.hpp>
 #include <azure/core/response.hpp>
 #include <azure/storage/common/crypt.hpp>
@@ -71,7 +67,7 @@ namespace Azure { namespace Storage { namespace Blobs {
     }; // extensible enum AccountKind
 
     /**
-     * @brief Describes a sinlge block in block blob.
+     * @brief Describes a single block in block blob.
      */
     struct BlobBlock final
     {