Removed reference to floating point reader.
Removed reference to floating point reader.

The reason for removing this paragraph is that the reader will
just convert a rational to a float, and the magic happens in
that conversion.

clasp-developers/SICL,vtomole/SICL,vtomole/SICL,vtomole/SICL,clasp-developers/SICL,clasp-developers/SICL,vtomole/SICL,clasp-developers/SICL