Label border radius not affected by variables.less

Created by: akasfei

I noticed .border-radius in label is not using any of the variables defined in variables.less. When I try to compile a custom version of bootstrap (with absolutely no round-corner components), I had to write a standalone css rule to disable .label's border radius. Perhaps a new variable, like @border-radius-fluid: 0.25em; will make this clearer.