3 files changed, 4 insertions, 57 deletions

diff --git a/absl/random/internal/BUILD.bazel b/absl/random/internal/BUILD.bazel
index d7ad4ef..8839078 100644
--- a/absl/random/internal/BUILD.bazel
+++ b/absl/random/internal/BUILD.bazel
@@ -509,7 +509,6 @@ cc_library(
     linkopts = ABSL_DEFAULT_LINKOPTS,
     deps = [
         "//absl/random",
-        "//absl/strings",
     ],
 )
 
diff --git a/absl/random/internal/distribution_caller.h b/absl/random/internal/distribution_caller.h
index 02603cf..ae2680d 100644
--- a/absl/random/internal/distribution_caller.h
+++ b/absl/random/internal/distribution_caller.h
@@ -31,22 +31,8 @@ namespace random_internal {
 template <typename URBG>
 struct DistributionCaller {
   // Call the provided distribution type. The parameters are expected
-  // to be explicitly specified.
-  // DistrT is the distribution type.
-  // FormatT is the formatter type:
-  //
-  // struct FormatT {
-  //   using result_type = distribution_t::result_type;
-  //   static std::string FormatCall(
-  //       const distribution_t& distr,
-  //       absl::Span<const result_type>);
-  //
-  //   static std::string FormatExpectation(
-  //       absl::string_view match_args,
-  //       absl::Span<const result_t> results);
-  // }
-  //
-  template <typename DistrT, typename FormatT, typename... Args>
+  // to be explicitly specified.  DistrT is the distribution type.
+  template <typename DistrT, typename... Args>
   static typename DistrT::result_type Call(URBG* urbg, Args&&... args) {
     DistrT dist(std::forward<Args>(args)...);
     return dist(*urbg);
diff --git a/absl/random/internal/mocking_bit_gen_base.h b/absl/random/internal/mocking_bit_gen_base.h
index eeeae9d..acd6387 100644
--- a/absl/random/internal/mocking_bit_gen_base.h
+++ b/absl/random/internal/mocking_bit_gen_base.h
@@ -16,39 +16,14 @@
 #ifndef ABSL_RANDOM_INTERNAL_MOCKING_BIT_GEN_BASE_H_
 #define ABSL_RANDOM_INTERNAL_MOCKING_BIT_GEN_BASE_H_
 
-#include <atomic>
-#include <deque>
-#include <string>
 #include <typeinfo>
 
 #include "absl/random/random.h"
-#include "absl/strings/str_cat.h"
 
 namespace absl {
 ABSL_NAMESPACE_BEGIN
 namespace random_internal {
 
-// MockingBitGenExpectationFormatter is invoked to format unsatisfied mocks
-// and remaining results into a description string.
-template <typename DistrT, typename FormatT>
-struct MockingBitGenExpectationFormatter {
-  std::string operator()(absl::string_view args) {
-    return absl::StrCat(FormatT::FunctionName(), "(", args, ")");
-  }
-};
-
-// MockingBitGenCallFormatter is invoked to format each distribution call
-// into a description string for the mock log.
-template <typename DistrT, typename FormatT>
-struct MockingBitGenCallFormatter {
-  std::string operator()(const DistrT& dist,
-                         const typename DistrT::result_type& result) {
-    return absl::StrCat(
-        FormatT::FunctionName(), "(", FormatT::FormatArgs(dist), ") => {",
-        FormatT::FormatResults(absl::MakeSpan(&result, 1)), "}");
-  }
-};
-
 class MockingBitGenBase {
   template <typename>
   friend struct DistributionCaller;
@@ -61,14 +36,9 @@ class MockingBitGenBase {
   static constexpr result_type(max)() { return (generator_type::max)(); }
   result_type operator()() { return gen_(); }
 
-  MockingBitGenBase() : gen_(), observed_call_log_() {}
   virtual ~MockingBitGenBase() = default;
 
  protected:
-  const std::deque<std::string>& observed_call_log() {
-    return observed_call_log_;
-  }
-
   // CallImpl is the type-erased virtual dispatch.
   // The type of dist is always distribution<T>,
   // The type of result is always distribution<T>::result_type.
@@ -81,10 +51,9 @@ class MockingBitGenBase {
   }
 
   // Call the generating distribution function.
-  // Invoked by DistributionCaller<>::Call<DistT, FormatT>.
+  // Invoked by DistributionCaller<>::Call<DistT>.
   // DistT is the distribution type.
-  // FormatT is the distribution formatter traits type.
-  template <typename DistrT, typename FormatT, typename... Args>
+  template <typename DistrT, typename... Args>
   typename DistrT::result_type Call(Args&&... args) {
     using distr_result_type = typename DistrT::result_type;
     using ArgTupleT = std::tuple<absl::decay_t<Args>...>;
@@ -99,18 +68,11 @@ class MockingBitGenBase {
     if (!found_match) {
       result = dist(gen_);
     }
-
-    // TODO(asoffer): Forwarding the args through means we no longer need to
-    // extract them from the from the distribution in formatter traits. We can
-    // just StrJoin them.
-    observed_call_log_.push_back(
-        MockingBitGenCallFormatter<DistrT, FormatT>{}(dist, result));
     return result;
   }
 
  private:
   generator_type gen_;
-  std::deque<std::string> observed_call_log_;
 };  // namespace random_internal
 
 }  // namespace random_internal