remove protoc install instructions from README.md

Author: dvdsk

candle-onnx/README.md

@@ -1,21 +1,3 @@
 # candle-onnx
 
 This crate adds ONNX support to candle
-
-## FAQ
-
-#### Missing protoc installation when compiling candle-onnx
-
-The candle-onnx dependency prost-build no longer comes bundled with prost
-binaries. This could cause the following error when attempting to compile
-candle-onnx:
-
-```
-error: failed to run custom build command for `candle-onnx`
-Caused by: // (...)
-  Could not find `protoc` installation and this build crate cannot proceed without this knowledge.
-```
-
-To fix this issue install protoc on your system and make it available in your
-system `PATH`. See the [protoc
-documentation](https://grpc.io/docs/protoc-installation/) for more information.