Remove extra initialization of _sessionClient (#1672)

Author: alerickson

src/code/V2ServerAPICalls.cs

@@ -76,7 +76,6 @@ public V2ServerAPICalls (PSRepositoryInfo repository, PSCmdlet cmdletPassedIn, N
                 _sessionClient = new HttpClient(handler);
             };
 
-            _sessionClient = new HttpClient(handler);
             _sessionClient.Timeout = TimeSpan.FromMinutes(10);
             _sessionClient.DefaultRequestHeaders.TryAddWithoutValidation("User-Agent", userAgentString);
             var repoURL = repository.Uri.ToString().ToLower();

src/code/V3ServerAPICalls.cs

@@ -75,7 +75,6 @@ public V3ServerAPICalls(PSRepositoryInfo repository, PSCmdlet cmdletPassedIn, Ne
                 _sessionClient = new HttpClient(handler);
             };
 
-            _sessionClient = new HttpClient(handler);
             _sessionClient.Timeout = TimeSpan.FromMinutes(10);
             _sessionClient.DefaultRequestHeaders.TryAddWithoutValidation("User-Agent", userAgentString);