getVar will expand by default, so the 'True' option is no longer required

Signed-off-by: Derek Straka <derek@asterius.io>

classes/rust-bin.bbclass

@@ -17,9 +17,9 @@ OVERLAP_LIBS = "\
     rand \
 "
 def get_overlap_deps(d):
-    deps = d.getVar("DEPENDS", True).split()
+    deps = d.getVar("DEPENDS").split()
     overlap_deps = []
-    for o in d.getVar("OVERLAP_LIBS", True).split():
+    for o in d.getVar("OVERLAP_LIBS").split():
         l = len([o for dep in deps if (o + '-rs' in dep)])
         if l > 0:
             overlap_deps.append(o)
@@ -31,7 +31,7 @@ OVERLAP_DEPS = "${@get_overlap_deps(d)}"
 RUSTC_PREFER_DYNAMIC = "-C prefer-dynamic"
 RUSTC_FLAGS += "${RUSTC_PREFER_DYNAMIC}"
 
-CRATE_NAME ?= "${@d.getVar('BPN', True).replace('-rs', '').replace('-', '_')}"
+CRATE_NAME ?= "${@d.getVar('BPN').replace('-rs', '').replace('-', '_')}"
 BINNAME ?= "${BPN}"
 LIBNAME ?= "lib${CRATE_NAME}-rs"
 CRATE_TYPE ?= "dylib"

classes/rust-common.bbclass

@@ -18,11 +18,11 @@ def rust_base_triple(d, thing):
     Note that os is assumed to be some linux form
     '''
 
-    arch = d.getVar('{}_ARCH'.format(thing), True)
+    arch = d.getVar('{}_ARCH'.format(thing))
     # All the Yocto targets are Linux and are 'unknown'
     vendor = "-unknown"
-    os = d.getVar('{}_OS'.format(thing), True)
-    libc = d.getVar('TCLIBC', True)
+    os = d.getVar('{}_OS'.format(thing))
+    libc = d.getVar('TCLIBC')
 
     # Prefix with a dash and convert glibc -> gnu
     if libc == "glibc":

classes/rust.bbclass

@@ -8,8 +8,8 @@ def rust_base_dep(d):
     # Taken from meta/classes/base.bbclass `base_dep_prepend` and modified to
     # use rust instead of gcc
     deps = ""
-    if not d.getVar('INHIBIT_DEFAULT_RUST_DEPS', True):
-        if (d.getVar('HOST_SYS', True) != d.getVar('BUILD_SYS', True)):
+    if not d.getVar('INHIBIT_DEFAULT_RUST_DEPS'):
+        if (d.getVar('HOST_SYS') != d.getVar('BUILD_SYS')):
             deps += " virtual/${TARGET_PREFIX}rust ${RUSTLIB_DEP}"
         else:
             deps += " rust-native"