remove not used sci volume data

sci_volume_data/christmas_tree/data/christmas_tree.txt

@@ -1,6 +0,0 @@
-Christmas Tree
-Description: The Christmas tree model was scanned with a Siemens Somatom Plus 4 Volume Zoom Multislice-CT scanner at the general hospital in Vienna.
-Data Type: uint16
-Data Byte Order: little Endian
-Data Spacing: 1x1x1
-Data Extent: 512x499x512

sci_volume_data/christmas_tree/data/christmas_tree_512x499x512_uint16.raw

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:952aaa7288ef0aa63ae04ec3157b7f5eb27f11ec5fafb75a274d7c39dce91440
-size 261619712

sci_volume_data/marmoset_neurons/data/marmoset_neurons.txt

@@ -1,6 +0,0 @@
-Neurons in Marmoset Visual Cortex
-Description: Pyramidal neurons in the marmoset primary visual cortex (V1) labeled with green fluorescent protein (GFP) after injection of a psuedotyped G-deleted rabies virus in area V2. The tissue was cleared using the Sca/e technique and imaged on a Olympus 2-photon microscope at 20x magnification.
-Data Type: uint8
-Data Byte Order: little Endian
-Data Spacing: 0.497x0.497x1.5
-Data Extent: 1024x1024x314

sci_volume_data/marmoset_neurons/data/marmoset_neurons_1024x1024x314_uint8.raw

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:c4949b80253fd9aaf8a853b816e208c9cc5c23092986a66334679cace8e629f2
-size 329252864

sci_volume_data/present/data/present.txt

@@ -1,6 +0,0 @@
-Christmas Present
-Description: An industrial CT scan of a christmas present.
-Data Type: uint16
-Data Byte Order: little Endian
-Data Spacing: 1x1x1
-Data Extent: 492x492x442

sci_volume_data/present/data/present_492x492x442_uint16.raw

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:80b33d805efc601608f252644451c8173ecc7f27f22a57251fe170d5c33794e8
-size 213984576

sci_volume_data/prone/data/prone.txt

@@ -1,6 +0,0 @@
-Colon Prone
-Description: CT scan of abdomen in prone orientation (back faces ceiling, belly faces table).
-Data Type: uint16
-Data Byte Order: little Endian
-Data Spacing: 0.625x0.625x1.0
-Data Extent: 512x512x463

sci_volume_data/prone/data/prone_512x512x463_uint16.raw

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:ae1ac5181e72006f7363a642a396cbc3247a3e3ce9a01328b02a7e3ab2e6b93c
-size 242745344

sci_volume_data/vertebra/data/vertebra.txt

@@ -1,6 +0,0 @@
-Head Aneurism
-Description: Rotational angiography scan of a head with an aneurysm. Only contrasted blood vessels are visible.
-Data Type: uint16
-Data Byte Order: little Endian
-Data Spacing: 0.1953x0.1953x0.1953
-Data Extent: 512x512x512

sci_volume_data/vertebra/data/vertebra_512x512x512_uint16.raw

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:f620f71087b4b299ba9f3f02962c235332b7abedf8f97f871cb2c269956e218c
-size 268435456

sci_volume_data/zeiss/data/zeiss.txt

@@ -1,6 +0,0 @@
-Zeiss
-Description: Car part reconstructed from projections.
-Data Type: uint8
-Data Byte Order: little Endian
-Data Spacing: 1x1x1
-Data Extent: 680x680x680

sci_volume_data/zeiss/data/zeiss_680x680x680_uint8.raw

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:805dce7b2106beaff01d130abfc7b28fa8c488f44da0e7b24460ac0f2e5f209c
-size 314432000