Revert of Enable side-by-side beta and dev channels.

chrome/test/mini_installer/config/chrome_dev_installed.prop

-{
-  "Condition": "'$BRAND' == 'Google Chrome'",
-  "Files": {
-    "$LOCAL_APPDATA\\$CHROME_DIR_DEV\\Application\\chrome.exe": {"exists": true},
-    "$LOCAL_APPDATA\\$CHROME_DIR_DEV\\Application\\chrome.VisualElementsManifest.xml": {"exists": true},
-    "$LOCAL_APPDATA\\$CHROME_DIR_DEV\\Application\\$MINI_INSTALLER_FILE_VERSION\\chrome.dll":
-        {"exists": true},
-    "$LOCAL_APPDATA\\$CHROME_DIR_DEV\\Application\\$MINI_INSTALLER_FILE_VERSION\\chrome_elf.dll":
-        {"exists": true},
-    "$LOCAL_APPDATA\\$CHROME_DIR_DEV\\Application\\$MINI_INSTALLER_FILE_VERSION\\Installer\\chrome.7z":
-        {"exists": true},
-    "$LOCAL_APPDATA\\$CHROME_DIR_DEV\\Application\\$MINI_INSTALLER_FILE_VERSION\\Installer\\setup.exe":
-        {"exists": true},
-    "$LOCAL_APPDATA\\$CHROME_DIR_DEV\\Application\\$MINI_INSTALLER_FILE_VERSION\\$MINI_INSTALLER_FILE_VERSION.manifest":
-        {"exists": true},
-    "$LOCAL_APPDATA\\$CHROME_DIR_DEV\\Application\\$MINI_INSTALLER_FILE_VERSION\\$NEXT_VERSION_MINI_INSTALLER_FILE_VERSION":
-        {"exists": false}
-  },
-  "RegistryEntries": {
-    "HKEY_CURRENT_USER\\$CHROME_UPDATE_REGISTRY_SUBKEY_DEV": {
-      "exists": "required",
-      "values": {
-        "pv": {"type": "SZ", "data": "$MINI_INSTALLER_FILE_VERSION"}
-      }
-    },
-    "HKEY_CURRENT_USER\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\$CHROME_LONG_NAME_DEV": {
-      "exists": "required",
-      "values": {
-        "UninstallString": {
-          "type": "SZ",
-          "data": "\"$LOCAL_APPDATA\\$CHROME_DIR_DEV\\Application\\$MINI_INSTALLER_FILE_VERSION\\Installer\\setup.exe\" --uninstall --chrome-dev --verbose-logging"
-        },
-        "Version": {"type": "SZ", "data": "$MINI_INSTALLER_FILE_VERSION"}
-      }
-    },
-    "HKEY_CURRENT_USER\\Software\\Classes\\$CHROME_SHORT_NAME_DEV$USER_SPECIFIC_REGISTRY_SUFFIX": {
-      "exists": "forbidden"
-    }
-  }
-}