Update my-recommender.pig

removed 

default_parallel=3

NUM_RECS_PER_ITEM=3
NUM_RECS_PER_USER=3

LOGISTIC_PARAM=2.0 
MIN_LINK_WEIGHT=1.0
BAYESIAN_PRIOR=4.0

MAX_LINKS_PER_USER=10
ADD_DIVERSITY_FACTOR=false