remove fasta and ref_dir in default

defaults

@@ -21,7 +21,6 @@
     "hisat2_cluster": "OnDemand bcs.a2.3xlarge img-ubuntu-vpc",
     "idx_prefix": "genome_snp_tran",
     "idx": "oss://pgx-reference-data/reference/hisat2/grch38_snp_tran/",
-    "fasta": "GRCh38.d1.vd1.fa",
     "pen_cansplice":"0",
     "pen_noncansplice":"3",
     "pen_intronlen":"G,-8,1",
@@ -53,7 +52,6 @@
     "screen_ref_dir": "oss://pgx-reference-data/fastq_screen_reference/",
     "fastq_screen_conf": "oss://pgx-reference-data/fastq_screen_reference/fastq_screen.conf",
     "fastqscreen_disk_size": "200",
-    "ref_dir": "oss://chinese-quartet/quartet-storage-data/reference_data/",
     "multiqc_cluster_config": "OnDemand bcs.b2.3xlarge img-ubuntu-vpc",
     "multiqc_docker": "registry-vpc.cn-shanghai.aliyuncs.com/pgx-docker-registry/multiqc:v1.8",
     "multiqc_disk_size": "100",