Remove an early-return from Driver::ParseArgs that was added as a part of D52604 / r343348.  If the lldb driver is run without any arguments, .lldbinit  file reading was not enabled.
Remove an early-return from Driver::ParseArgs that
was added as a part of D52604 / r343348.  If the
lldb driver is run without any arguments, .lldbinit 
file reading was not enabled.

<rdar://problem/45570242> 


git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@345422 91177308-0d34-0410-b5e6-96231b3b80d8

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