[PATCH v2] tools:perf:scripts:python:intel-pt-events del unusedvar

[Alexander Pantyukhin <apantykhin@gmail.com>]

The event_attr is never used later, the var is ok be deleted.
Additional code simplification is to substitute string slice comparison
with "substring" function. This case no need to know the length specific
words.

Signed-off-by: Alexander Pantyukhin <apantykhin@gmail.com>
---
 tools/perf/scripts/python/intel-pt-events.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/scripts/python/intel-pt-events.py b/tools/perf/scripts/python/intel-pt-events.py
index 08862a2582f4..dfd566369ca4 100644
--- a/tools/perf/scripts/python/intel-pt-events.py
+++ b/tools/perf/scripts/python/intel-pt-events.py
@@ -340,7 +340,6 @@ def print_srccode(comm, param_dict, sample, symbol, dso, with_insn):
 	print(start_str, src_str)
 
 def do_process_event(param_dict):
-	event_attr = param_dict["attr"]
 	sample	   = param_dict["sample"]
 	raw_buf	   = param_dict["raw_buf"]
 	comm	   = param_dict["comm"]
@@ -349,6 +348,7 @@ def do_process_event(param_dict):
 	# callchain  = param_dict["callchain"]
 	# brstack    = param_dict["brstack"]
 	# brstacksym = param_dict["brstacksym"]
+	# event_attr = param_dict["attr"]
 
 	# Symbol and dso info are not always resolved
 	dso    = get_optional(param_dict, "dso")
@@ -359,13 +359,13 @@ def do_process_event(param_dict):
 		print(glb_switch_str[cpu])
 		del glb_switch_str[cpu]
 
-	if name[0:12] == "instructions":
+	if name.startswith("instructions"):
 		if glb_src:
 			print_srccode(comm, param_dict, sample, symbol, dso, True)
 		else:
 			print_instructions_start(comm, sample)
 			print_common_ip(param_dict, sample, symbol, dso)
-	elif name[0:8] == "branches":
+	elif name.startswith("branches"):
 		if glb_src:
 			print_srccode(comm, param_dict, sample, symbol, dso, False)
 		else:
-- 
2.25.1