LLDB: Deleting function breakpoint through the VSCode UI doesn't actually delete the function breakpoint

Type: Debugger

Describe the bug

• OS and Version: macOS 10.13.3
• VS Code Version: 1.25.1
• C/C++ Extension Version: 0.17.7
• Other extensions you installed (and if the issue persists after disabling them): XML Formatter, TSLint, SQL Server (yes it still reproes after disabling other extensions
• When disabling or removing function breakpoints through the UI the actual breakpoint(s) aren't removed and LLDB still breaks on them.

To Reproduce

• Add a function breakpoint (e.g. "myMethod")
• do "-exec br list" and verify that you have one or multiple breakpoints to methods matching "myMethod"
• Right click the function breakpoint for "myMethod" and remove it
• do "-exec br list"
  Expected: no breakpoints for myMethod
  Actual: breakpoints for myMethod are still around.
  Note: I set the function breakpoints in a vague way (e.g. I entered "myMethod" even though the full signature might be "void myMethod(int i)"