diff --git a/spacy/syntax/_parse_features.pxd b/spacy/syntax/_parse_features.pxd
index 818e50cc1..191d41ef5 100644
--- a/spacy/syntax/_parse_features.pxd
+++ b/spacy/syntax/_parse_features.pxd
@@ -34,7 +34,6 @@ cpdef enum:
     S2_shape
     S2_ne_iob
     S2_ne_type
-    S2ss
 
     S1w
     S1W
@@ -48,7 +47,6 @@ cpdef enum:
     S1_shape
     S1_ne_iob
     S1_ne_type
-    S1ss
 
     S1rw
     S1rW
@@ -62,7 +60,6 @@ cpdef enum:
     S1r_shape
     S1r_ne_iob
     S1r_ne_type
-    S1rss
 
     S0lw
     S0lW
@@ -76,7 +73,6 @@ cpdef enum:
     S0l_shape
     S0l_ne_iob
     S0l_ne_type
-    S0lss
 
     S0l2w
     S0l2W
@@ -90,7 +86,6 @@ cpdef enum:
     S0l2_shape
     S0l2_ne_iob
     S0l2_ne_type
-    S0l2ss
 
     S0w
     S0W
@@ -104,7 +99,6 @@ cpdef enum:
     S0_shape
     S0_ne_iob
     S0_ne_type
-    S0ss
 
     S0r2w
     S0r2W
@@ -118,7 +112,6 @@ cpdef enum:
     S0r2_shape
     S0r2_ne_iob
     S0r2_ne_type
-    S0r2ss
 
     S0rw
     S0rW
@@ -132,7 +125,6 @@ cpdef enum:
     S0r_shape
     S0r_ne_iob
     S0r_ne_type
-    S0rss
 
     N0l2w
     N0l2W
@@ -146,7 +138,6 @@ cpdef enum:
     N0l2_shape
     N0l2_ne_iob
     N0l2_ne_type
-    N0l2ss
 
     N0lw
     N0lW
@@ -160,7 +151,6 @@ cpdef enum:
     N0l_shape
     N0l_ne_iob
     N0l_ne_type
-    N0lss
 
     N0w
     N0W
@@ -174,7 +164,6 @@ cpdef enum:
     N0_shape
     N0_ne_iob
     N0_ne_type
-    N0ss
 
     N1w
     N1W
@@ -188,7 +177,6 @@ cpdef enum:
     N1_shape
     N1_ne_iob
     N1_ne_type
-    N1ss
 
     N2w
     N2W
@@ -202,7 +190,6 @@ cpdef enum:
     N2_shape
     N2_ne_iob
     N2_ne_type
-    N2ss
 
     P1w
     P1W
@@ -216,7 +203,6 @@ cpdef enum:
     P1_shape
     P1_ne_iob
     P1_ne_type
-    P1ss
 
     P2w
     P2W
@@ -230,7 +216,6 @@ cpdef enum:
     P2_shape
     P2_ne_iob
     P2_ne_type
-    P2ss
 
     E0w
     E0W
@@ -244,7 +229,6 @@ cpdef enum:
     E0_shape
     E0_ne_iob
     E0_ne_type
-    E0ss
 
     E1w
     E1W
@@ -258,7 +242,6 @@ cpdef enum:
     E1_shape
     E1_ne_iob
     E1_ne_type
-    E1ss
 
     # Misc features at the end
     dist
diff --git a/spacy/syntax/_parse_features.pyx b/spacy/syntax/_parse_features.pyx
index bbf0a9c4c..35a49f21c 100644
--- a/spacy/syntax/_parse_features.pyx
+++ b/spacy/syntax/_parse_features.pyx
@@ -18,8 +18,6 @@ from .stateclass cimport StateClass
 
 from cymem.cymem cimport Pool
 
-from ..cimport senses
-
 
 cdef inline void fill_token(atom_t* context, const TokenC* token) nogil:
     if token is NULL:
@@ -61,7 +59,6 @@ cdef inline void fill_token(atom_t* context, const TokenC* token) nogil:
         context[9] = token.lex.shape
         context[10] = token.ent_iob
         context[11] = token.ent_type
-        context[12] = token.lex.senses & senses.POS_SENSES[<int>token.pos]
 
 cdef int fill_context(atom_t* ctxt, StateClass st) nogil:
     # Take care to fill every element of context!
@@ -254,22 +251,6 @@ unigrams = (
     (N0lW, N0lp),
     (N0lc6, N0lp),
     (N0lL,),
-
-    (S2ss,),
-    (S1ss,),
-    (S1rss,),
-    (S0lss,),
-    (S0l2ss,),
-    (S0ss,),
-    (S0r2ss,),
-    (S0rss,),
-    (N0lss,),
-    (N0l2ss,),
-    (N0ss,),
-    (N1ss,),
-    (N2ss,),
-    (P1ss,),
-    (P2ss,),
 )
 
 
@@ -296,7 +277,6 @@ s0_n0 = (
     (S0p, N0lv, N0p),
     (S0c6, S0rL, S0r2L, N0p),
     (S0p, N0lL, N0l2L, N0p),
-    (S0ss, N0ss),
 )
 
 
@@ -317,7 +297,6 @@ s1_s0 = (
     (S1L, S0L, S0p),
     (S1p, S1L, S0L, S0p),
     (S1p, S0p),
-    (S1ss, S0ss),
 )
 
 
@@ -332,7 +311,6 @@ s1_n0 = (
     (S1L, N0p),
     (S1p, S1rL, N0p),
     (S1p, S1rp, N0p),
-    (S1ss, N0ss),
 )
 
 
@@ -346,7 +324,6 @@ s0_n1 = (
     (S0c6, S0p, N1c6, N1p),
     (S0L, N1p),
     (S0p, S0rL, N1p),
-    (S0ss, N1ss),
 )
 
 
@@ -358,7 +335,6 @@ n0_n1 = (
     (N0c6, N0p, N1c6, N1p),
     (N0c, N1c),
     (N0p, N1c),
-    (N0ss, N1ss),
 )
 
 tree_shape = (
@@ -386,7 +362,6 @@ trigrams = (
 
     (N0W, N0p, N0lL, N0l2L),
     (N0p, N0lL, N0l2L),
-    (S1ss, S0ss, N0ss,), 
 )