follow-up prev: specify rlp version

python-trezor depends on rlp (an ethereum package) that we do not need..
Newer versions of rlp introduced several new dependencies, which is even more stuff we don't need.
Some of these new dependencies are even a trouble to build on Wine, as they need vc++, and they don't distribute binary builds.

related #4338

contrib/deterministic-build/requirements-hw.txt

@@ -40,17 +40,9 @@ Cython==0.28.2 \
     --hash=sha256:deea1ef59445568dd7738fa3913aea7747e4927ff4ae3c10737844b8a5dd3e22 \
     --hash=sha256:e05d28b5ce1ee5939d83e50344980659688ecaed65c5e10214d817ecf5d1fe6a \
     --hash=sha256:f5f6694ce668eb7a9b59550bfe4265258809c9b0665c206b26d697df2eef2a8b
-cytoolz==0.9.0.1 \
-    --hash=sha256:84cc06fa40aa310f2df79dd440fc5f84c3e20f01f9f7783fc9c38d0a11ba00e5
 ecdsa==0.13 \
     --hash=sha256:40d002cf360d0e035cf2cb985e1308d41aaa087cbfc135b2dc2d844296ea546c \
     --hash=sha256:64cf1ee26d1cde3c73c6d7d107f835fed7c6a2904aef9eac223d57ad800c43fa
-eth-hash==0.1.2 \
-    --hash=sha256:43adcab75a957fcf8c453d5542be55e4e0bd4e166270f45b09ac69b4d6486a06 \
-    --hash=sha256:8695f5f3794497d1357b2ef6e84c67a7daf4bfec1dde9f76ff6b2022c2cc03a6
-eth-utils==1.0.3 \
-    --hash=sha256:0eb71bdafda7e7e4c80ba98c06b3f89472e8ba0183a149be678f13cbb3b2e9b4 \
-    --hash=sha256:add4cc71b64e40b15c1e7b037905daf59da58e046004bde7a2915f86a7fc8e57
 hidapi==0.7.99.post21 \
     --hash=sha256:1ac170f4d601c340f2cd52fd06e85c5e77bad7ceac811a7bb54b529f7dc28c24 \
     --hash=sha256:8d3be666f464347022e2b47caf9132287885d9eacc7895314fc8fefcb4e42946 \
@@ -109,17 +101,14 @@ pyblake2==1.1.2 \
 requests==2.18.4 \
     --hash=sha256:6a1b267aa90cac58ac3a765d067950e7dbbf75b1da07e895d1f594193a40a38b \
     --hash=sha256:9c443e7324ba5b85070c4a818ade28bfabedf16ea10206da1132edaa6dda237e
-rlp==1.0.1 \
-    --hash=sha256:492c11b18e89af42f98e96bca7671ffee4ad4cf5e69ea23b4d2221157d81b512 \
-    --hash=sha256:dc6c5887f354508892b70f2897ca3d135411d669e0103092e689c224ef8de8e9
+rlp==0.6.0 \
+    --hash=sha256:87879a0ba1479b760cee98af165de2eee95258b261faa293199f60742be96f34
 setuptools==39.1.0 \
     --hash=sha256:0cb8b8625bfdcc2d43ea4b9cdba0b39b2b7befc04f3088897031082aa16ce186 \
     --hash=sha256:c5484e13b89927b44fd15897f7ce19dded8e7f035466a4fa7b946c0bdd86edd7
 six==1.11.0 \
     --hash=sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9 \
     --hash=sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb
-toolz==0.9.0 \
-    --hash=sha256:929f0a7ea7f61c178bd951bdae93920515d3fbdbafc8e6caf82d752b9b3b31c9
 trezor==0.9.1 \
     --hash=sha256:a481191011bade98f1e9f1201e7c72a83945050657bbc90dc4ac32dc8b8b46a4
 urllib3==1.22 \

contrib/requirements/requirements-hw.txt

@@ -1,4 +1,5 @@
 Cython>=0.27
+rlp==0.6.0
 trezor[hidapi]>=0.9.0
 keepkey
 btchip-python