Remove interning support from ReuseableStringBuilder
Remove interning support from ReuseableStringBuilder

mono/msbuild,rainersigwald/msbuild,sean-gilliam/msbuild,rainersigwald/msbuild,AndyGerlicher/msbuild,mono/msbuild,AndyGerlicher/msbuild,sean-gilliam/msbuild,AndyGerlicher/msbuild,sean-gilliam/msbuild,rainersigwald/msbuild,sean-gilliam/msbuild,mono/msbuild,AndyGerlicher/msbuild,mono/msbuild,rainersigwald/msbuild