[PR] README: remove note about experimental status of instrumentation

Summary:
Vasily Leonenko,
Advanced Software Technology Lab, Huawei

(cherry picked from FBD30092666)
diff --git a/bolt/README.md b/bolt/README.md
index 40f64ee..7c624d5 100644
--- a/bolt/README.md
+++ b/bolt/README.md
@@ -140,7 +140,7 @@
 events, such as cycles. In this case, the quality of the profile information
 would not be as good, and performance gains with BOLT are expected to be lower.
 
-#### With instrumentation (experimental)
+#### With instrumentation
 
 If perf record is not available to you, you may collect profile by first
 instrumenting the binary with BOLT and then running it.
@@ -153,8 +153,7 @@
 **Step 2**.
 
 Run BOLT with the `-help` option and check the category "BOLT instrumentation
-options" for a quick reference on instrumentation knobs. Instrumentation is
-experimental and currently does not work for PIEs/SOs.
+options" for a quick reference on instrumentation knobs.
 
 ### Step 2: Convert Profile to BOLT Format