Remove power.gpu_rasterization.top_X from benchmark times JSON

tools/perf/core/desktop_benchmark_avg_times.json

 {
     "battor.power_cases": 128.98619307615817,
     "battor.steady_state": 968.0069302916527,
     "battor.tough_video_cases": 1174.7288519289436,
     "battor.trivial_pages": 1418.5335564192603,
     "blink_perf.bindings": 347.9730213748084,
     "blink_perf.canvas": 107.17591333586323,
     "blink_perf.css": 107.84485836140811,
     "blink_perf.dom": 98.51104682236321,
     "blink_perf.events": 66.05652102455497,
@@ skipping 40 matching lines @@
     "page_cycler_v2.basic_oopif": 518.1674624776242,
     "page_cycler_v2.intl_ar_fa_he": 1062.7986515655075,
     "page_cycler_v2.intl_es_fr_pt-BR": 1275.5369048880207,
     "page_cycler_v2.intl_hi_ru": 1371.516809665312,
     "page_cycler_v2.intl_ja_zh": 2381.6099734405675,
     "page_cycler_v2.intl_ko_th_vi": 1651.235684189815,
     "page_cycler_v2.top_10_mobile": 671.6237025374458,
     "page_cycler_v2.tough_layout_cases": 1047.1903459546722,
     "page_cycler_v2.typical_25": 2253.314608139926,
     "page_cycler_v2_site_isolation.basic_oopif": 513.9117965158755,
-    "power.gpu_rasterization.top_10": 337.4231767654419,
-    "power.gpu_rasterization.top_25": 834.0499158447439,
     "power.steady_state": 596.0703444047408,
     "power.top_10": 356.0645871018789,
     "power.top_25": 813.9569391814146,
     "power.trivial_pages": 772.9753481583161,
     "rasterize_and_record_micro.key_mobile_sites": 625.6900956763161,
     "rasterize_and_record_micro.partial_invalidation": 15.75209499442059,
     "rasterize_and_record_micro.top_25": 411.0595565901862,
     "scheduler.tough_scheduling_cases": 548.2793788776964,
     "service_worker.service_worker": 74.72189191356301,
     "service_worker.service_worker_micro_benchmark": 9.664271195403865,
@@ skipping 43 matching lines @@
     "v8.infinite_scroll-ignition_tbmv2": 474.53039245256565,
     "v8.infinite_scroll_tbmv2": 490.40869227484546,
     "v8.todomvc": 126.77664421172369,
     "v8.todomvc-ignition": 135.6247856377669,
     "v8.top_25_smooth": 318.00548734664915,
     "webrtc.datachannel": 39.26883707946563,
     "webrtc.getusermedia": 18.085213074427166,
     "webrtc.peerconnection": 58.52019228742796,
     "webrtc.webrtc_smoothness": 115.75982538233983
 }