Graupel precipitation warning print statement

[AndersJensen-NOAA]

When the warning "Graupel is higher than total precip" is being printed, it is printed too often which slows down RRFS. This warning is being commented out. I think that this warning message prints only when graupel alone is reaching the surface. Total precipitation is interpolated and precipitation from individual hydrometeor categories is not. Thus, when total precipitation equals graupel precipitation and total precipitation is interpolated and graupel precipitation is not, the two values may not be equal. Additionally, the values of graupel precipitation were changed in the print statement to graup_bucket(i,j)*1.e-3, to have the correct units.