MIPS: Remove unnecessary printf lines from assembler tests.

test/cctest/test-assembler-mips64.cc

Index: test/cctest/test-assembler-mips64.cc
diff --git a/test/cctest/test-assembler-mips64.cc b/test/cctest/test-assembler-mips64.cc
index 5edacd790af69ea54a701930eb0c854c46c0b0ee..be64d3398bb860c495cdfb0c1fd294bf7f433833 100644
--- a/test/cctest/test-assembler-mips64.cc
+++ b/test/cctest/test-assembler-mips64.cc
@@ -66,7 +66,6 @@ TEST(MIPS0) {
   F2 f = FUNCTION_CAST<F2>(code->entry());
   int64_t res =
       reinterpret_cast<int64_t>(CALL_GENERATED_CODE(f, 0xab0, 0xc, 0, 0, 0));
-  ::printf("f() = %ld\n", res);
   CHECK_EQ(0xabcL, res);
 }
 
@@ -103,7 +102,6 @@ TEST(MIPS1) {
   F1 f = FUNCTION_CAST<F1>(code->entry());
   int64_t res =
      reinterpret_cast<int64_t>(CALL_GENERATED_CODE(f, 50, 0, 0, 0, 0));
-  ::printf("f() = %ld\n", res);
   CHECK_EQ(1275L, res);
 }
 
@@ -250,7 +248,6 @@ TEST(MIPS2) {
   F2 f = FUNCTION_CAST<F2>(code->entry());
   int64_t res =
       reinterpret_cast<int64_t>(CALL_GENERATED_CODE(f, 0xab0, 0xc, 0, 0, 0));
-  ::printf("f() = %ld\n", res);
 
   CHECK_EQ(0x31415926L, res);
 }