qd-fun.lisp:

o Remove unused var R1 in EXP-QD/REDUCE.
o TAN-QD was calling ZEROP instead of ZEROP-QD.
o Comment out extra copy of ASINH-QD.

qd-io.lisp:
o Ignore unused var in QD-PRINT-EXPONENT and QD-READER.

qd.lisp:
o Remove extra version of DIV-QD.