Disable swift-integration-tests due to lldb build failure

Author: shahmishal

utils/build-presets.ini

@@ -746,6 +746,7 @@ reconfigure
 
 # Skip lldb build due to rdar://problem/33715252
 skip-build-lldb
+test-installable-package=0
 
 # Linux package with out test
 [preset: buildbot_linux,no_test]
@@ -802,6 +803,7 @@ skip-test-lldb
 
 # Skip lldb build due to rdar://problem/33715252
 skip-build-lldb
+test-installable-package=0
 
 [preset: buildbot_linux_1404_no_lldb]
 mixin-preset=buildbot_incremental_linux