Deprecate NoRunFirrtlCompilerAnnotation (#3022)

Deprecate this Annotation/Option which is only used by
chisel3.stage.ChiselStage.  An equivalent effect can be had with the
emitCHIRRTL method of the ChiselStage$ object or using the "--target
chirrtl" option of the ChiselStage class.

Signed-off-by: Schuyler Eldridge <schuyler.eldridge@sifive.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>