lint: fix all major issues

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

profiler/noop.go

@@ -0,0 +1,20 @@
+package profiler
+
+type noopProfiler struct{}
+
+func (p *noopProfiler) Start() error {
+	return nil
+}
+
+func (p *noopProfiler) Stop() error {
+	return nil
+}
+
+func (p *noopProfiler) String() string {
+	return "noop"
+}
+
+// NewProfiler returns new noop profiler
+func NewProfiler(opts ...Option) Profiler {
+	return &noopProfiler{}
+}