chore: remove goreportcard badge (#92)

Signed-off-by: awphi <26072111+awphi@users.noreply.github.com>

Author: awphi

README.md

@@ -1,7 +1,5 @@
 # Remoteproc Runtime
 
-[![Go Report Card](https://goreportcard.com/badge/github.com/arm/remoteproc-runtime)](https://goreportcard.com/report/github.com/arm/remoteproc-runtime)
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 **Deploy firmware to embedded processors using standard container tools.**
 
 An [OCI spec](https://github.com/opencontainers/runtime-spec) container runtime that deploys firmware to auxiliary processors using the [Linux remoteproc framework](https://docs.kernel.org/staging/remoteproc.html#introduction).