Remove SkBicubicImageFilter, and all related tests.

expectations/gm/Test-Win7-ShuttleA-HD2000-x86-Release-DirectWrite/expected-results.json

 {
   "actual-results": {
     "failed": null, 
     "failure-ignored": null, 
     "no-comparison": null, 
     "succeeded": null
   }, 
   "expected-results": {
     "3x3bitmaprect_565.png": {
       "allowed-digests": [
@@ skipping 286 matching lines @@
     }, 
     "bezier_quad_effects_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           6937225590561456413
         ]
       ], 
       "reviewed-by-human": true
     }, 
-    "bicubicfilter_565.png": {
-      "allowed-digests": [
-        [
-          "bitmap-64bitMD5", 
-          13864700347231029854
-        ]
-      ], 
-      "reviewed-by-human": true
-    }, 
-    "bicubicfilter_8888.png": {
-      "allowed-digests": [
-        [
-          "bitmap-64bitMD5", 
-          10469536215464879914
-        ]
-      ], 
-      "reviewed-by-human": true
-    }, 
-    "bicubicfilter_gpu.png": {
-      "allowed-digests": [
-        [
-          "bitmap-64bitMD5", 
-          10573214378214332517
-        ]
-      ], 
-      "bugs": [
-        1578
-      ], 
-      "reviewed-by-human": false
-    }, 
-    "bicubicfilter_pdf-poppler.png": {
-      "allowed-digests": [
-        [
-          "bitmap-64bitMD5", 
-          12297352892272012287
-        ]
-      ], 
-      "bugs": [
-        1578
-      ], 
-      "reviewed-by-human": false
-    }, 
     "bigbitmaprect_i_565.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
           13015342363421751909
         ]
       ], 
       "bugs": [
         1578
       ], 
@@ skipping 12205 matching lines @@
           "bitmap-64bitMD5", 
           14157160633878011690
         ]
       ], 
       "bugs": [
         1578
       ], 
       "reviewed-by-human": false
     }
   }
-}
+}