Remove obsolete info from the docs (#997)
Remove obsolete info from the docs (#997)

`BenchmarkDotNet` `Doesn't have any dependencies` - is no longer true.
PerfDotNet/BenchmarkDotNet,alinasmirnova/BenchmarkDotNet,ig-sinicyn/BenchmarkDotNet,adamsitnik/BenchmarkDotNet,adamsitnik/BenchmarkDotNet,Ky7m/BenchmarkDotNet,PerfDotNet/BenchmarkDotNet,adamsitnik/BenchmarkDotNet,Ky7m/BenchmarkDotNet,Ky7m/BenchmarkDotNet,ig-sinicyn/BenchmarkDotNet,PerfDotNet/BenchmarkDotNet,alinasmirnova/BenchmarkDotNet,Ky7m/BenchmarkDotNet,alinasmirnova/BenchmarkDotNet,ig-sinicyn/BenchmarkDotNet,ig-sinicyn/BenchmarkDotNet,adamsitnik/BenchmarkDotNet,alinasmirnova/BenchmarkDotNet