Do not flag models in dashboard due to NaN values (#88792)

Title.

Tested by running `python benchmarks/dynamo/runner.py --output-dir ../test-dynamo-runner-logs-4 --training --visualize_logs` on a copy of a recent set of logs.

Pull Request resolved: https://github.com/pytorch/pytorch/pull/88792
Approved by: https://github.com/anijain2305
diff --git a/benchmarks/dynamo/runner.py b/benchmarks/dynamo/runner.py
index ea54bb9..9c05383 100755
--- a/benchmarks/dynamo/runner.py
+++ b/benchmarks/dynamo/runner.py
@@ -121,15 +121,15 @@
 
 
 def flag_speedup(x):
-    return pd.isna(x) or x < 0.95
+    return x < 0.95
 
 
 def flag_compilation_latency(x):
-    return pd.isna(x) or x == 0 or x > 120
+    return x > 120
 
 
 def flag_compression_ratio(x):
-    return pd.isna(x) or x < 0.9
+    return x < 0.9
 
 
 FLAG_FNS = {