Simplify the error logs for profiles we can't open.

The stack trace is not interesting and we don't care if the unlink
failed because the file is not there.

Bug: 27401160
Change-Id: I765b3a1481e2d257dd120e240122c025b1c134bf
diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index 02b94de..31eff96 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -4808,11 +4808,15 @@
                 Os.fchmod(fd, permissions);
                 Os.fchown(fd, appInfo.uid, appInfo.uid);
             } catch (ErrnoException e) {
-                Log.v(TAG, "Unable to create jit profile file " + profileFile, e);
+                Log.v(TAG, "Unable to create jit profile file "
+                        + profileFile + ": " + e.getMessage());
                 try {
                     Os.unlink(profileFile.getAbsolutePath());
                 } catch (ErrnoException unlinkErr) {
-                    Log.v(TAG, "Unable to unlink jit profile file " + profileFile, unlinkErr);
+                    if (unlinkErr.errno != OsConstants.ENOENT) {
+                        Log.v(TAG, "Unable to unlink jit profile file "
+                                + profileFile + ": " + unlinkErr.getMessage());
+                    }
                 }
                 return;
             } finally {