[VPR] Code format

Author: tangxifan

vpr/src/base/vpr_types.h

@@ -231,7 +231,6 @@ class t_pack_high_fanout_thresholds {
     std::map<std::string, int> overrides_;
 };
 
-
 /* these are defined later, but need to declare here because it is used */
 class t_rr_node;
 class t_pack_molecule;
@@ -1125,7 +1124,6 @@ enum e_router_algorithm {
     TIMING_DRIVEN,
 };
 
-
 enum e_base_cost_type {
     DELAY_NORMALIZED,
     DELAY_NORMALIZED_LENGTH,

vpr/src/util/vpr_utils.h

@@ -171,5 +171,4 @@ void print_timing_stats(std::string name,
                         const t_timing_analysis_profile_info& current,
                         const t_timing_analysis_profile_info& past = t_timing_analysis_profile_info());
 
-
 #endif