Disable reference build for blink_style

Now failing with:
  'MarkerMismatchError: Number or order of timeline markers does not match
   provided labels'

TBR=sullivan
BUG=479048
CQ_EXTRA_TRYBOTS=tryserver.chromium.perf:linux_perf_bisect;tryserver.chromium.perf:mac_perf_bisect;tryserver.chromium.perf:win_perf_bisect;tryserver.chromium.perf:android_nexus5_perf_bisect

Review URL: https://codereview.chromium.org/1104413004

Cr-Commit-Position: refs/heads/master@{#327256}

tools/perf/benchmarks/blink_style.py

@@ -7,6 +7,7 @@ from telemetry import benchmark
 from measurements import blink_style
 import page_sets
 
+@benchmark.Disabled('reference')
 class BlinkStyleTop25(benchmark.Benchmark):
   """Measures performance of Blink's style engine (CSS Parsing, Style Recalc,
   etc.) on the top 25 pages.
@@ -19,6 +20,7 @@ class BlinkStyleTop25(benchmark.Benchmark):
     return 'blink_style.top_25'
 
 
+@benchmark.Disabled('reference')
 @benchmark.Enabled('android')
 class BlinkStyleKeyMobileSites(benchmark.Benchmark):
   """Measures performance of Blink's style engine (CSS Parsing, Style Recalc,
@@ -32,6 +34,7 @@ class BlinkStyleKeyMobileSites(benchmark.Benchmark):
     return 'blink_style.key_mobile_sites'
 
 
+@benchmark.Disabled('reference')
 @benchmark.Enabled('android')
 class BlinkStylePolymer(benchmark.Benchmark):
   """Measures performance of Blink's style engine (CSS Parsing, Style Recalc,