Update convit.py

Cut out the duplicates

Author: lmk123568

timm/models/convit.py

@@ -64,7 +64,6 @@ def __init__(self, dim, num_heads=8, qkv_bias=False, qk_scale=None, attn_drop=0.
         self.dim = dim
         head_dim = dim // num_heads
         self.scale = qk_scale or head_dim ** -0.5
-        self.locality_strength = locality_strength
 
         self.qk = nn.Linear(dim, dim * 2, bias=qkv_bias)
         self.v = nn.Linear(dim, dim, bias=qkv_bias)