Temporarily disable some SwiftPM tests. I believe they are failing due to this PR but need to disable them to get a complete toolchain so I can inspect things more deeply

Author: stmontgomery

utils/build-presets.ini

@@ -867,7 +867,8 @@ build-embedded-stdlib-cross-compiling
 # Executes the lit tests for the installable package that is created
 # Assumes the swift-integration-tests repo is checked out
 
-test-installable-package
+# TODO: Re-enable this before landing!
+#test-installable-package
 
 # Build the benchmarks against the toolchain.
 toolchain-benchmarks
@@ -1386,7 +1387,8 @@ install-prefix=%(install_toolchain_dir)s/usr
 # Executes the lit tests for the installable package that is created
 # Assumes the swift-integration-tests repo is checked out
 
-test-installable-package
+# TODO: Re-enable this before landing!
+#test-installable-package
 
 # Make sure that we can build the benchmarks with swiftpm against the toolchain
 toolchain-benchmarks