Delete invalid goog.provide'd namespace initialization

(This could also be left in the code if written as
  /** @const */
  mr.Analytics = {};
dropping the type {*})

Currently JSCompiler incorrectly ignores the @const {*}, but soon will start warning that the namespace properties "never defined on *"

See also https://github.com/google/closure-compiler/wiki/A-word-about-the-type-Object#namespaces

PiperOrigin-RevId: 283866535
4 files changed