[Curl] Remove warnings on curl layer.

[Basuke Suzuki]

There's several warnings:

[2033/5049] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/platform/network/curl/CurlFormDataStream.cpp.o
../../Source/WebCore/platform/network/curl/CurlFormDataStream.cpp:131:60: warning: unused parameter 'blobData' [-Wunused-parameter]
            }, [] (const FormDataElement::EncodedBlobData& blobData) {
                                                           ^
1 warning generated.
[2043/5049] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/platform/network/curl/CookieJarDB.cpp.o
../../Source/WebCore/platform/network/curl/CookieJarDB.cpp:641:9: warning: unused variable 'ret' [-Wunused-variable]
    int ret = statement->prepare();
        ^
1 warning generated.
[2044/5049] Building CXX object Source/WebCore/CMakeFiles/....dir/platform/network/curl/NetworkStorageSessionCurl.cpp.o
../../Source/WebCore/platform/network/curl/NetworkStorageSessionCurl.cpp:98:133: warning: unused parameter 'frameID' [-Wunused-parameter]
void NetworkStorageSession::setCookiesFromDOM(const URL& firstParty, const SameSiteInfo&, const URL& url, Optional<FrameIdentifier> frameID, Optional<PageIdentifier> pageID, ShouldAskITP, const String& value, ShouldRelaxThirdPartyCookieBlocking shouldRelaxThirdPartyCookieBlocking) const

            ^
../../Source/WebCore/platform/network/curl/NetworkStorageSessionCurl.cpp:98:246: warning: unused parameter 'shouldRelaxThirdPartyCookieBlocking' [-Wunused-parameter]
void NetworkStorageSession::setCookiesFromDOM(const URL& firstParty, const SameSiteInfo&, const URL& url, Optional<FrameIdentifier> frameID, Optional<PageIdentifier> pageID, ShouldAskITP, const String& value, ShouldRelaxThirdPartyCookieBlocking shouldRelaxThirdPartyCookieBlocking) const


     ^
2 warnings generated.
[2048/5049] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/platform/network/curl/CurlRequest.cpp.o
../../Source/WebCore/platform/network/curl/CurlRequest.cpp:532:45: warning: unused parameter 'request' [-Wunused-parameter]
void CurlRequest::setupPUT(ResourceRequest& request)
                                            ^
../../Source/WebCore/platform/network/curl/CurlRequest.cpp:546:46: warning: unused parameter 'request' [-Wunused-parameter]
void CurlRequest::setupPOST(ResourceRequest& request)
                                             ^
2 warnings generated.

[Basuke Suzuki]

Created attachment 426346 [details]
PATCH

[EWS]

Committed r276211 (236693@main): <https://commits.webkit.org/236693@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 426346 [details].

[Radar WebKit Bug Importer]

<rdar://problem/77110088>