Minor refactoring in NetworkCurl #1792

Job	Run time
PSV.Linux.22.04.gcc11	8m 28s
PSV.Linux.22.04.gcc9.Tests.CodeCov	10m 27s
PSV.Linux.20.04.gcc7.OLP_SDK_ENABLE_DEFAULT_CACHE=OFF	2m 20s
PSV.Linux.20.04.gcc7.Cpplint	7m 44s
PSV.Linux.22.04.gcc13	11m 46s
PSV.Linux.22.04.gcc13.OLP_SDK_ENABLE_DEFAULT_CACHE=OFF	5m 55s
PSV.Linux.Android.20.04	6m 3s
PSV.Linux.20.04.clang	7m 54s
PSV.Linux.22.04.gcc11.OLP_SDK_ENABLE_DEFAULT_CACHE=OFF	2m 4s
PSV.MacOS13.Xcode15.x86_64	4m 42s
PSV.MacOS14.Xcode15	5m 37s
PSV.MacOS13.Xcode16	3m 10s
PSV.Commit.Checker	5s
PSV.iOS.MacOS14.Xcode15	7m 37s
PSV.iOS.MacOS13.Xcode16	5m 16s
PSV.iOS.MacOS13.Xcode14	12m 44s
PSV.iOS.MacOS13.Xcode15	13m 28s
PSV.Win.VC2019	9m 31s
	2h 4m 51s

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