automatically removed unnecessary includes

pub/src/axis.cpp

pub/src/calc.cpp

pub/src/commands.cpp

pub/src/coord.cpp

pub/src/curve.cpp

pub/src/dualplot.cpp

pub/src/edif.cpp

pub/src/expr.cpp

pub/src/file_out.cpp

pub/src/fit.cpp

pub/src/func.cpp

pub/src/import.cpp

pub/src/integrate.cpp

pub/src/jsel.cpp

pub/src/list.cpp

pub/src/manip.cpp

pub/src/mem.cpp

pub/src/node.cpp

pub/src/olf.cpp

pub/src/opr.cpp