[breaking] Removed real_name field from gRPC Library message and JSON responses (#1890)

* Removed real_name field from gRPC Library message

* Update docs/UPGRADING.md

Co-authored-by: per1234 <accounts@perglass.com>

Co-authored-by: per1234 <accounts@perglass.com>

Author: cmaglie

arduino/libraries/libraries.go

@@ -132,7 +132,6 @@ func (library *Library) ToRPCLibrary() (*rpc.Library, error) {
 		Location:          library.Location.ToRPCLibraryLocation(),
 		ContainerPlatform: platformOrEmpty(library.ContainerPlatform),
 		Layout:            library.Layout.ToRPCLibraryLayout(),
-		RealName:          library.Name,
 		DotALinkage:       library.DotALinkage,
 		Precompiled:       library.Precompiled,
 		LdFlags:           library.LDflags,

cli/lib/list.go

@@ -129,10 +129,7 @@ func (ir installedResult) String() string {
 	lastName := ""
 	for _, libMeta := range ir.installedLibs {
 		lib := libMeta.GetLibrary()
-		name := lib.RealName
-		if name == "" {
-			name = lib.Name
-		}
+		name := lib.Name
 		if name == lastName {
 			name = ` "`
 		} else {

docs/UPGRADING.md

@@ -19,6 +19,24 @@ freely renamed.
 This change improves the overall code base naming coherence since all the structures involving libraries have the `Name`
 field that refers to the library name as it appears in the `library.properties` file.
 
+#### gRPC message `cc.arduino.cli.commands.v1.Library` no longer has `real_name` field
+
+You must use the `name` field instead.
+
+#### Machine readable `lib list` output no longer has "real name" field
+
+##### JSON
+
+The `[*].library.real_name` field has been removed.
+
+You must use the `[*].library.name` field instead.
+
+##### YAML
+
+The `[*].library.realname` field has been removed.
+
+You must use the `[*].library.name` field instead.
+
 ### `github.com/arduino/arduino-cli/arduino/libraries/librariesmanager.LibrariesManager.Install` removed parameter `installLocation`
 
 The method: