Remove panic debugging information (#29512)

It was out of date.

Fixes #1113.

website/docs/internals/debugging.html.md

@@ -26,63 +26,3 @@ the same level arguments as `TF_LOG`, but only activate a subset of the logs.
 To persist logged output you can set `TF_LOG_PATH` in order to force the log to always be appended to a specific file when logging is enabled. Note that even when `TF_LOG_PATH` is set, `TF_LOG` must be set in order for any logging to be enabled.
 
 If you find a bug with Terraform, please include the detailed log by using a service such as gist.
-
-## Interpreting a Crash Log
-
-If Terraform ever crashes (a "panic" in the Go runtime), it saves a log file
-with the debug logs from the session as well as the panic message and backtrace
-to `crash.log`. Generally speaking, this log file is meant to be passed along
-to the developers via a GitHub Issue. As a user, you're not required to dig
-into this file.
-
-However, if you are interested in figuring out what might have gone wrong
-before filing an issue, here are the basic details of how to read a crash
-log.
-
-The most interesting part of a crash log is the panic message itself and the
-backtrace immediately following. So the first thing to do is to search the file
-for `panic: `, which should jump you right to this message. It will look
-something like this:
-
-```text
-panic: runtime error: invalid memory address or nil pointer dereference
-
-goroutine 123 [running]:
-panic(0xabc100, 0xd93000a0a0)
-	/opt/go/src/runtime/panic.go:464 +0x3e6
-github.com/hashicorp/terraform/builtin/providers/aws.resourceAwsSomeResourceCreate(...)
-	/opt/gopath/src/github.com/hashicorp/terraform/builtin/providers/aws/resource_aws_some_resource.go:123 +0x123
-github.com/hashicorp/terraform/helper/schema.(*Resource).Refresh(...)
-	/opt/gopath/src/github.com/hashicorp/terraform/helper/schema/resource.go:209 +0x123
-github.com/hashicorp/terraform/helper/schema.(*Provider).Refresh(...)
-	/opt/gopath/src/github.com/hashicorp/terraform/helper/schema/provider.go:187 +0x123
-github.com/hashicorp/terraform/rpc.(*ResourceProviderServer).Refresh(...)
-	/opt/gopath/src/github.com/hashicorp/terraform/rpc/resource_provider.go:345 +0x6a
-reflect.Value.call(...)
-	/opt/go/src/reflect/value.go:435 +0x120d
-reflect.Value.Call(...)
-	/opt/go/src/reflect/value.go:303 +0xb1
-net/rpc.(*service).call(...)
-	/opt/go/src/net/rpc/server.go:383 +0x1c2
-created by net/rpc.(*Server).ServeCodec
-	/opt/go/src/net/rpc/server.go:477 +0x49d
-```
-
-The key part of this message is the first two lines that involve `hashicorp/terraform`. In this example:
-
-```text
-github.com/hashicorp/terraform/builtin/providers/aws.resourceAwsSomeResourceCreate(...)
-	/opt/gopath/src/github.com/hashicorp/terraform/builtin/providers/aws/resource_aws_some_resource.go:123 +0x123
-```
-
-The first line tells us that the method that failed is
-`resourceAwsSomeResourceCreate`, which we can deduce that involves the creation
-of a (fictional) `aws_some_resource`.
-
-The second line points to the exact line of code that caused the panic,
-which--combined with the panic message itself--is normally enough for a
-developer to quickly figure out the cause of the issue.
-
-As a user, this information can help work around the problem in a pinch, since
-it should hopefully point to the area of the code base in which the crash is
-happening.