--- a/python/mozboot/mozboot/base.py
+++ b/python/mozboot/mozboot/base.py
@@ -254,24 +254,16 @@ class BaseBootstrapper(object):
     def ensure_stylo_packages(self, state_dir, checkout_root):
         '''
         Install any necessary packages needed for Stylo development.
         '''
         raise NotImplementedError(
             '%s does not yet implement ensure_stylo_packages()'
             % __name__)
 
-    def ensure_proguard_packages(self, state_dir, checkout_root):
-        '''
-        Install any necessary packages that provide the Proguard JAR.
-
-        Only required to build mobile/android.
-        '''
-        self.install_toolchain_artifact(state_dir, checkout_root, 'proguard-jar')
-
     def install_toolchain_artifact(self, state_dir, checkout_root, toolchain_job):
         mach_binary = os.path.join(checkout_root, 'mach')
         mach_binary = os.path.abspath(mach_binary)
         if not os.path.exists(mach_binary):
             raise ValueError("mach not found at %s" % mach_binary)
 
         # If Python can't figure out what its own executable is, there's little
         # chance we're going to be able to execute mach on its own, particularly

--- a/python/mozboot/mozboot/bootstrap.py
+++ b/python/mozboot/mozboot/bootstrap.py
@@ -370,19 +370,16 @@ class Bootstrapper(object):
 
             if not have_clone:
                 print(STYLO_REQUIRES_CLONE)
                 sys.exit(1)
 
             self.instance.state_dir = state_dir
             self.instance.ensure_stylo_packages(state_dir, checkout_root)
 
-            if 'mobile_android' in application:
-                self.instance.ensure_proguard_packages(state_dir, checkout_root)
-
         print(self.finished % name)
         if not (self.instance.which('rustc') and self.instance._parse_version('rustc')
                 >= MODERN_RUST_VERSION):
             print("To build %s, please restart the shell (Start a new terminal window)" % name)
 
         # Like 'suggest_browser_mozconfig' or 'suggest_mobile_android_mozconfig'.
         getattr(self.instance, 'suggest_%s_mozconfig' % application)()