Fix covered-switch-default warning in FormatManager.
Fix covered-switch-default warning in FormatManager.

Summary:
The default case doesn't need to be here as the switch covers
all possible values. If there's a new "lazy bool" value added
in the future, the compiler would start to warn about the new
case not being covered.

Reviewers: granata.enrico, clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D13084

git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@248365 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb,llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb