Cleanup: Remove unused CFX_PSRenderer and various encoders it used.

core/src/fpdfapi/fpdf_parser/fpdf_parser_decode_embeddertest.cpp

Index: core/src/fpdfapi/fpdf_parser/fpdf_parser_decode_embeddertest.cpp
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_decode_embeddertest.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_decode_embeddertest.cpp
index c80770366bcf263a92cdbb3c3f19cf90ce7f9c2f..810a633c8358c82182d1272cb6a1e4917f1fd79c 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_decode_embeddertest.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_decode_embeddertest.cpp
@@ -47,14 +47,14 @@ TEST_F(FPDFParserDecodeEmbeddertest, FlateEncode) {
 
   for (size_t i = 0; i < FX_ArraySize(flate_encode_cases); ++i) {
     FlateEncodeCase* ptr = &flate_encode_cases[i];
-    unsigned char* result;
-    unsigned int result_size;
-    FlateEncode(ptr->input, ptr->input_size, result, result_size);
-    ASSERT_TRUE(result);
+    unsigned char* buf;
+    unsigned int buf_size;
+    EXPECT_TRUE(FlateEncode(ptr->input, ptr->input_size, &buf, &buf_size));
+    ASSERT_TRUE(buf);
     EXPECT_EQ(std::string((const char*)ptr->expected, ptr->expected_size),
-              std::string((const char*)result, result_size))
+              std::string((const char*)buf, buf_size))
         << " for case " << i;
-    FX_Free(result);
+    FX_Free(buf);
   }
 }