Revert sanitization of package name

I think this was a mistake from the beginning. The specs added after
reverting the patch still pass without the change, and the commit
message reads: "JS: Sanitize spaces in filenames", while there's no
filename involved here whatsoever, just the package name.

This commit reverts c5b1fe6 and
2864404.

npm_and_yarn/lib/dependabot/npm_and_yarn/file_updater/yarn_lockfile_updater.rb

@@ -575,15 +575,10 @@ def yarnrc_content
         end
 
         def sanitized_package_json_content(content)
-          updated_content =
-            content.
+          content.
             gsub(/\{\{[^\}]*?\}\}/, "something"). # {{ nm }} syntax not allowed
             gsub(/(?<!\\)\\ /, " ").          # escaped whitespace not allowed
             gsub(%r{^\s*//.*}, " ")           # comments are not allowed
-
-          json = JSON.parse(updated_content)
-          json["name"] = json["name"].delete(" ") if json["name"].is_a?(String)
-          json.to_json
         end
 
         def sanitize_package_name(package_name)

npm_and_yarn/spec/dependabot/npm_and_yarn/file_updater_spec.rb

@@ -99,16 +99,6 @@
       end
     end
 
-    context "with a name that needs sanitizing" do
-      let(:files) { project_dependency_files("npm6/invalid_name") }
-
-      it "updates the files" do
-        expect { updated_files }.to_not(change { Dir.entries(tmp_path) })
-        updated_files.each { |f| expect(f).to be_a(Dependabot::DependencyFile) }
-        expect(updated_files.count).to eq(2)
-      end
-    end
-
     context "with multiple dependencies" do
       let(:files) { project_dependency_files("npm6_and_yarn/multiple_updates") }
 
@@ -1561,16 +1551,6 @@
         end
       end
 
-      context "with a name that needs sanitizing" do
-        let(:files) { project_dependency_files("npm8/invalid_name") }
-
-        it "updates the files" do
-          expect { updated_files }.to_not(change { Dir.entries(tmp_path) })
-          updated_files.each { |f| expect(f).to be_a(Dependabot::DependencyFile) }
-          expect(updated_files.count).to eq(2)
-        end
-      end
-
       context "with multiple dependencies" do
         let(:files) { project_dependency_files("npm8/multiple_updates") }