process_collector: Merge wasip1 and js into a single implementation

Signed-off-by: Ying WANG <ying.wang@grafana.com>

Author: ying-jeanne

prometheus/process_collector_js.go

@@ -11,23 +11,23 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-//go:build wasip1
-// +build wasip1
+//go:build wasip1 || js
+// +build wasip1 js
 
 package prometheus
 
 func canCollectProcess() bool {
 	return false
 }
 
+// describe returns all descriptions of the collector for wasip1 and js.
+// Ensure that this list of descriptors is kept in sync with the metrics collected
+// in the processCollect method. Any changes to the metrics in processCollect
+// (such as adding or removing metrics) should be reflected in this list of descriptors.
 func (c *processCollector) processCollect(ch chan<- Metric) {
 	c.errorCollectFn(ch)
 }
 
-// describe returns all descriptions of the collector for wasip1.
-// Ensure that this list of descriptors is kept in sync with the metrics collected
-// in the processCollect method. Any changes to the metrics in processCollect
-// (such as adding or removing metrics) should be reflected in this list of descriptors.
 func (c *processCollector) describe(ch chan<- *Desc) {
 	c.errorDescribeFn(ch)
 }