Remove key constructor

This is to remove the number of overloads and
because just setting the key is not usually enough
for encrypted databases since you need to
configure the encryption.

src/SQLite.cs

@@ -258,20 +258,6 @@ public SQLiteConnection (string databasePath, SQLiteOpenFlags openFlags, bool st
 		{
 		}
 
-		/// <summary>
-		/// Constructs a new SQLiteConnection and opens a SQLite database specified by databasePath.
-		/// </summary>
-		/// <param name="databasePath">
-		/// Specifies the path to the database file.
-		/// </param>
-		/// <param name="key">
-		/// Specifies the encryption key to use on the database. Should be a string or a byte[].
-		/// </param>
-		public SQLiteConnection (string databasePath, object key)
-			: this (new SQLiteConnectionString (databasePath, true, key: key))
-		{
-		}
-
 		/// <summary>
 		/// Constructs a new SQLiteConnection and opens a SQLite database specified by databasePath.
 		/// </summary>