Reduce logging during minidump processing

Change-Id: Ie62795137770cff7cda7494c5527457b1e355897
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/5402921
Reviewed-by: Ivan Penkov <ivanpe@chromium.org>

src/processor/minidump_processor.cc

@@ -823,8 +823,6 @@ static void CalculateFaultAddressFromInstruction(Minidump* dump,
 
   DisassemblerObjdump disassembler(context->GetContextCPU(), memory_region,
                                    instruction_ptr);
-  fprintf(stderr, "%s %s %s\n", disassembler.operation().c_str(),
-    disassembler.src().c_str(), disassembler.dest().c_str());
   if (!disassembler.IsValid()) {
     BPLOG(INFO) << "Disassembling fault instruction failed.";
     return;

src/processor/stackwalker_amd64.cc

@@ -147,7 +147,6 @@ StackFrameAMD64* StackwalkerAMD64::GetCallerByCFIFrameInfo(
     return NULL;
 
   if (!frame->context.rip || !frame->context.rsp) {
-    BPLOG(ERROR) << "invalid rip/rsp";
     return NULL;
   }
 

src/processor/stackwalker_arm64.cc

@@ -289,8 +289,6 @@ void StackwalkerARM64::CorrectRegLRByFramePointer(
   uint64_t last_fp = 0;
   if (last_frame_callee_fp &&
       !memory_->GetMemoryAtAddress(last_frame_callee_fp, &last_fp)) {
-    BPLOG(ERROR) << "Unable to read last_fp from last_last_fp: 0x" << std::hex
-                 << last_frame_callee_fp;
     return;
   }
   // Give up if STACK CFI doesn't agree with frame pointer.