Merge pull request #1312 from bddckr/fix/duplicated-extraction

Don't extract the release package file twice.

Author: anaisbetts

src/Squirrel/DeltaPackage.cs

@@ -68,9 +68,6 @@ public ReleasePackage CreateDeltaPackage(ReleasePackage basePackage, ReleasePack
                 this.Log().Info("Extracting {0} and {1} into {2}", 
                     basePackage.ReleasePackageFile, newPackage.ReleasePackageFile, tempPath);
 
-                Utility.ExtractZipToDirectory(basePackage.ReleasePackageFile, baseTempInfo.FullName).Wait();
-                var opts = new ExtractionOptions() { ExtractFullPath = true, Overwrite = true, PreserveFileTime = true };
-
                 Utility.ExtractZipToDirectory(basePackage.ReleasePackageFile, baseTempInfo.FullName).Wait();
                 Utility.ExtractZipToDirectory(newPackage.ReleasePackageFile, tempInfo.FullName).Wait();