[codec][aac] Fix aac build after merge

These two files were removed by the recent merge from upstream.

TESTED: Manually checked AAC via BT in both directions.
BUG: fxbug.dev/128466
Change-Id: Ib108b0e6b0b2897a3cc6a221a6ade81ab16df2cd
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/android/platform/external/aac/+/884256
Reviewed-by: David Fang <fangism@google.com>
diff --git a/BUILD.gn b/BUILD.gn
index fef83e9..88d1515 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -154,7 +154,6 @@
     "libSACenc/src/sacenc_tree.cpp",
     "libSACenc/src/sacenc_vectorfunctions.cpp",
     "libSBRdec/src/HFgen_preFlat.cpp",
-    "libSBRdec/src/arm/lpp_tran_arm.cpp",
     "libSBRdec/src/env_calc.cpp",
     "libSBRdec/src/env_dec.cpp",
     "libSBRdec/src/env_extr.cpp",
@@ -166,7 +165,6 @@
     "libSBRdec/src/psdec_drm.cpp",
     "libSBRdec/src/psdecrom_drm.cpp",
     "libSBRdec/src/pvc_dec.cpp",
-    "libSBRdec/src/sbr_crc.cpp",
     "libSBRdec/src/sbr_deb.cpp",
     "libSBRdec/src/sbr_dec.cpp",
     "libSBRdec/src/sbr_ram.cpp",