bandaid for giac pexpect unwanted timing display

src/sage/interfaces/giac.py

@@ -580,24 +580,30 @@ def cputime(self, t=None):
         else:
             return float(self('time() - %s'%float(t)))
 
-
     def _eval_line(self, line, allow_use_file=True, wait_for_prompt=True, restart_if_needed=False):
         """
         EXAMPLES::
 
             sage: giac._eval_line('2+2')
             '4'
 
-            sage: A=matrix([range(280)])
-            sage: GA=giac(A)
+            sage: A = matrix([range(280)])
+            sage: GA = giac(A)
+
+        TESTS::
+
+            sage: h='int(1/x*((-2*x^(1/3)+1)^(1/4))^3,x)'
+            sage: giac(h)
+            12*(...)
         """
         with gc_disabled():
             z = Expect._eval_line(self, line, allow_use_file=allow_use_file,
                     wait_for_prompt=wait_for_prompt)
             if z.lower().find("error") != -1:
                 raise RuntimeError("An error occurred running a Giac command:\nINPUT:\n%s\nOUTPUT:\n%s"%(line, z))
-        return z
-
+        lines = (line for line in z.splitlines()
+                 if not line.startswith('Evaluation time:'))
+        return "\n".join(lines)
 
     def eval(self, code, strip=True, **kwds):
         r"""