MNT: shared libs as host deps, boost is handled by fsl-base

meta.yaml

@@ -24,17 +24,14 @@ build:
       - {{ name }}
 
 requirements:
-  build:
-    - {{ compiler('cxx') }}
-    - fsl-base >=2007.0
-    - fsl-NewNifti >=3.0.4
+  host:
+    - fsl-newnifti >=3.0.4
     - fsl-armawrap >=0.4.1
     - fsl-cprob >=2006.0
     - fsl-miscmaths >=2001.0
     - fsl-newimage >=2006.0
     - fsl-utils >=1908.0
     - fsl-znzlib >=2006.0
-    - boost >=1.58
-
-  run:
-    - boost >=1.58
+  build:
+    - {{ compiler('cxx') }}
+    - fsl-base >=2007.0