Remove warning about caching path and git dependencies

Let's consider both use cases equally valid and don't warn any of them.
Then change in the default will be signaled by changelog and
documentation.

bundler/lib/bundler/cli/cache.rb

@@ -37,12 +37,6 @@ def setup_cache_all
       all = options.fetch(:all, Bundler.feature_flag.cache_all? || nil)
 
       Bundler.settings.set_command_option_if_given :cache_all, all
-
-      if Bundler.definition.has_local_dependencies? && !Bundler.feature_flag.cache_all?
-        Bundler.ui.warn "Your Gemfile contains path and git dependencies. If you want "    \
-          "to cache them as well, please pass the --all flag. This will be the default " \
-          "on Bundler 3.0."
-      end
     end
   end
 end

bundler/lib/bundler/definition.rb

@@ -323,10 +323,6 @@ def has_rubygems_remotes?
       sources.rubygems_sources.any? {|s| s.remotes.any? }
     end
 
-    def has_local_dependencies?
-      !sources.path_sources.empty? || !sources.git_sources.empty?
-    end
-
     def spec_git_paths
       sources.git_sources.map {|s| File.realpath(s.path) if File.exist?(s.path) }.compact
     end

bundler/spec/cache/git_spec.rb

@@ -174,32 +174,6 @@
     expect(the_bundle).to include_gems "has_submodule 1.0"
   end
 
-  it "displays warning message when detecting git repo in Gemfile", :bundler => "< 3" do
-    build_git "foo"
-
-    install_gemfile <<-G
-      gem "foo", :git => '#{lib_path("foo-1.0")}'
-    G
-
-    bundle :cache
-
-    expect(err).to include("Your Gemfile contains path and git dependencies.")
-  end
-
-  it "does not display warning message if cache_all is set in bundle config" do
-    build_git "foo"
-
-    install_gemfile <<-G
-      gem "foo", :git => '#{lib_path("foo-1.0")}'
-    G
-
-    bundle "config set cache_all true"
-    bundle :cache
-    bundle :cache
-
-    expect(err).not_to include("Your Gemfile contains path and git dependencies.")
-  end
-
   it "caches pre-evaluated gemspecs" do
     git = build_git "foo"
 

bundler/spec/cache/path_spec.rb

@@ -91,18 +91,30 @@
     expect(bundled_app("vendor/cache/foo-1.0")).not_to exist
   end
 
-  it "raises a warning without --all", :bundler => "< 3" do
+  it "does not cache path gems by default", :bundler => "< 3" do
     build_lib "foo"
 
     install_gemfile <<-G
       gem "foo", :path => '#{lib_path("foo-1.0")}'
     G
 
     bundle :cache
-    expect(err).to match(/please pass the \-\-all flag/)
+    expect(err).to be_empty
     expect(bundled_app("vendor/cache/foo-1.0")).not_to exist
   end
 
+  it "caches path gems by default", :bundler => "3" do
+    build_lib "foo"
+
+    install_gemfile <<-G
+      gem "foo", :path => '#{lib_path("foo-1.0")}'
+    G
+
+    bundle :cache
+    expect(err).to be_empty
+    expect(bundled_app("vendor/cache/foo-1.0")).to exist
+  end
+
   it "stores the given flag" do
     build_lib "foo"