drm_hwcomposer: Remove unused {DrmComposition,DrmCompositor}::Dump()

Both DrmCompositor and DrmComposition have to be reworked to account
for shared DRM planes, asynchronous atomic commit, dynamic modechange and
composition reusing between Validate/Present steps.

Current dump logic will be obsolate anyway and keeping/supporting it will
slow-down reworking process. It make sense to remove it now and create
from scrach if needed.

Test: mmma external/drm_hwcomposer

Signed-off-by: Roman Stratiienko <roman.o.stratiienko@globallogic.com>
diff --git a/compositor/DrmDisplayCompositor.cpp b/compositor/DrmDisplayCompositor.cpp
index 5b16cad..4539664 100644
--- a/compositor/DrmDisplayCompositor.cpp
+++ b/compositor/DrmDisplayCompositor.cpp
@@ -45,13 +45,7 @@
       display_(-1),
       initialized_(false),
       active_(false),
-      use_hw_overlays_(true),
-      dump_frames_composited_(0),
-      dump_last_timestamp_ns_(0) {
-  struct timespec ts {};
-  if (clock_gettime(CLOCK_MONOTONIC, &ts))
-    return;
-  dump_last_timestamp_ns_ = ts.tv_sec * 1000 * 1000 * 1000 + ts.tv_nsec;
+      use_hw_overlays_(true) {
 }
 
 DrmDisplayCompositor::~DrmDisplayCompositor() {
@@ -304,7 +298,6 @@
     ClearDisplay();
     return;
   }
-  ++dump_frames_composited_;
 
   active_composition_.swap(composition);
 }
@@ -356,26 +349,4 @@
   return CommitFrame(composition, true);
 }
 
-void DrmDisplayCompositor::Dump(std::ostringstream *out) const {
-  uint64_t num_frames = dump_frames_composited_;
-  dump_frames_composited_ = 0;
-
-  struct timespec ts {};
-  int ret = clock_gettime(CLOCK_MONOTONIC, &ts);
-  if (ret) {
-    return;
-  }
-
-  uint64_t cur_ts = ts.tv_sec * 1000 * 1000 * 1000 + ts.tv_nsec;
-  uint64_t num_ms = (cur_ts - dump_last_timestamp_ns_) / (1000 * 1000);
-  float fps = num_ms ? static_cast<float>(num_frames) * 1000.0F /
-                           static_cast<float>(num_ms)
-                     : 0.0F;
-
-  *out << "--DrmDisplayCompositor[" << display_
-       << "]: num_frames=" << num_frames << " num_ms=" << num_ms
-       << " fps=" << fps << "\n";
-
-  dump_last_timestamp_ns_ = cur_ts;
-}
 }  // namespace android