update based on review feedback

specification/metrics/sdk_exporters/prometheus.md

@@ -11,21 +11,14 @@ Pushgateway](/~https://github.com/prometheus/pushgateway).
 Prometheus Exporter SHOULD support [Pull mode](../sdk.md#pull-metric-exporter),
 if possible.
 
-Prometheus Exporter MAY support [Push mode](../sdk.md#push-metric-exporter), if
-there is a need to support short-lived applications (e.g. short-lived
-service-level batch jobs, JavaScript applications running inside web browsers,
-etc.).
+Support for [Push mode](../sdk.md#push-metric-exporter) is out of scope for the
+initial release.
 
 Prometheus Exporter MUST support version `0.0.4` of the [Text-based
 format](/~https://github.com/prometheus/docs/blob/main/content/docs/instrumenting/exposition_formats.md#text-based-format).
 
 Prometheus Exporter SHOULD only support [Cumulative
-Temporality](../datamodel.md#temporality). Attempt to change the [Aggregation
-Temporality](../datamodel.md#temporality) to
-[Delta](../datamodel.md#temporality) SHOULD be treated as an error. It is
-unspecified _how_ the this error should be handled (e.g. it could fail fast
-during the exporter configuration time). Please refer to [Error handling in
-OpenTelemetry](../../error-handling.md) for the general guidance.
+Temporality](../datamodel.md#temporality).
 
 Prometheus Exporter MAY support [OpenMetrics Text
 Format](/~https://github.com/prometheus/docs/blob/main/content/docs/instrumenting/exposition_formats.md#openmetrics-text-format),