How do I remove all the apps in my All Apps sections that are not installed on my any of my devices?
On the Google Play Store app, swipe in from the left, tap My Apps, then All. You have to select each app to remove from the list by tapping the little X in the upper right hand corner. There's no way to do this in the Google Play Store web interface. The All Apps section is a record of all apps you've installed on that account, so Google doesn't let you completely erase an app from that list.
One minor nitpicky thing--"Android Market" is a very outdated term. It's been Google Play Store for a while.
How do I remove all the apps in my All Apps sections that are not installed on my any of my devices?