chore: package manifest local improvements (#574)

Co-authored-by: Brennan Stehling <[email protected]>

Author: atierian

AWSClientRuntime/Package.swift

@@ -23,17 +23,15 @@ let package = Package(
             dependencies: [
                 .product(name: "ClientRuntime", package: "ClientRuntime"),
                 .product(name: "AwsCommonRuntimeKit", package: "AwsCrt")
-            ],
-            path: "./Sources"
+            ]
         ),
         .testTarget(
             name: "AWSClientRuntimeTests",
             dependencies: [
                 "AWSClientRuntime",
                 .product(name: "SmithyTestUtil", package: "ClientRuntime"),
                 .product(name: "ClientRuntime", package: "ClientRuntime")
-            ],
-            path: "./Tests"
+            ]
         )
     ]
 )