Remove title for package.json schema contribution

This title will compete with the title of the base schema in cases like
highlight,
and the title is nonsensical for package.json for things other than VS
Code extensions.

Fixes #4268

Signed-off-by: David Thompson <[email protected]>

Author: datho7561

schemas/package.schema.json

@@ -1,6 +1,5 @@
 {
 	"$schema": "http://json-schema.org/draft-04/schema#",
-	"title": "Java Language server contributions to package.json",
 	"type": "object",
 	"properties": {
 		"contributes": {